When you meet someone for the first time, take in a book's cover, or glance at a storefront, your mind rapidly constructs an initial impression. These instant perceptions stick around for a while, even when they're unfounded. 



But in a turn of events, new research suggests sleeping could aid in perceiving beyond the "book's cover" and help us make better decisions.



<h2 class="wp-block-heading" id="h-a-strong-first-impression">A strong first impression </h2>



A team at Duke University recently rolled out an intriguing study. The researchers addressed the age-old question - does it pay off to make a strong first impression or does the last word have a stronger impact?



To investigate, the team devised an experiment based on an imaginary garage sale. Participants were asked to sift through virtual boxes filled with unwanted goods and select items for the sale. 



The participants' earnings depended on the boxes they chose, hence they were motivated to figure out the worth of each box.



The secret was, however, that all of the boxes had the same total value. What differed was the arrangement of valuable and worthless items. Some boxes had valuable items right on top, others in the middle, at the bottom, or intermixed.



<h2 class="wp-block-heading" id="h-primary-bias-and-poor-decisions">Primary bias and poor decisions</h2>



After opening the boxes, the participants were asked to gauge the value of each and select their preferred ones. Some had to make instant decisions, while others "<a href="https://www.earth.com/news/colors-of-sunset-and-sunrise-reset-our-circadian-rhythms/" target="_blank" rel="noreferrer noopener">slept on it</a>" and decided after a day. 



An interesting pattern emerged – the instant decision-makers tended to remember boxes not by their entire content but by the initial items they encountered. This discovery points towards a psychological trend known as "primacy bias."



Study lead author Allie Sinclair is a PhD candidate under Dr. Alison Adcock, a Duke professor of psychiatry and behavioral sciences.



"We found that people are strongly biased by first impressions," noted Sinclair. The participants repeatedly chose boxes with valuable items on top. 



Unveiling "treasures" before low-priced items made a box more appealing than if it was the other way round. They not only favored boxes that started strong, but also overvalued them.



Sinclair, now a postdoctoral fellow at the <a href="https://www.upenn.edu" target="_blank" rel="noreferrer noopener">University of Pennsylvania</a>, explained that primacy bias could lead to irrational comparisons and inaccurate estimates of value.



<h2 class="wp-block-heading" id="h-more-rational-choices-after-sleep">More rational choices after sleep</h2>



But there's a twist in the tale. Participants who had a day to think rendered more rational choices. They treated boxes with valuable items at any position equally. 



"They made more rational choices, equally favoring boxes with clusters of valuable items at the beginning, middle, or end," said Sinclair.



This finding suggests that delaying a decision might help us avoid the pitfalls of primacy bias. "When it's over, our brain knits it all together in memory to help us make better choices - and that neat trick happens overnight,” said Dr. Adcock.



<h2 class="wp-block-heading" id="h-sleeping-for-everyday-decision-making">Sleeping for everyday decision-making</h2>



The insights from this study offer profound implications for how we approach decision-making in everyday life. Whether we're buying a car, choosing a meal, or hiring a new team member, the tendency to rely on first impressions can lead to skewed assessments of value.



By recognizing the power of primacy bias, we can actively counter its effects by allowing ourselves time to reflect on all available information. Such a practice could enable us to make more informed, balanced decisions. 



Encouraging a brief pause or even a strategic overnight delay before arriving at significant decisions might be the key to sidestepping biases and making choices that align closer with the true merits of the situation.



<h2 class="wp-block-heading" id="h-science-of-memory-consolidation">Science of memory consolidation</h2>



The <a href="https://www.earth.com/news/sleep-increases-feelings-of-hope-happiness-and-gratitude/" target="_blank" rel="noreferrer noopener">role of sleep</a> in this study highlights the fascinating process of memory consolidation. During sleep, our brains engage in an intricate activity of reorganizing and reinforcing stored information, a vital function for learning and decision-making. 



This neurological process enhances our capacities for rational thought, allowing us to access a more comprehensive understanding of complex information. 



As the study illustrates, this can mitigate the allure of initial impressions. Understanding the relationship between <a href="https://www.earth.com/news/sleeping-less-than-seven-hours-high-blood-pressure-risk/" target="_blank" rel="noreferrer noopener">sleep</a> and cognitive function opens promising avenues for improving educational methodologies, therapeutic practices, and even business strategies. 



<h2 class="wp-block-heading" id="h-sleeping-on-a-decision">Sleeping on a decision</h2>



"Judging from first impressions may actually be a good thing for choices in the moment," said Dr. Adcock. However, for decisions with longer-term implications, it's worth "<a href="https://www.earth.com/news/micro-naps-in-the-brain-some-regions-sleep-while-others-stay-awake/" target="_blank" rel="noreferrer noopener">sleeping</a> on it."



Sinclair believes there's wisdom in the idea of delaying decisions, especially in matters of consequence, like hiring or dating.



This research, backed by a <a href="https://duke.edu" target="_blank" rel="noreferrer noopener">Duke University</a> Health Scholars Award to Alison Adcock, is an exciting first look at how our brain's summary of experiences impacts our future choices.



The study is published in the <a href="https://psycnet.apa.org/doiLanding?doi=10.1037%2Fxge0001638" target="_blank" rel="noreferrer noopener">Journal of Experimental Psychology</a>. 



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'Sleeping on it' is the best way to make a rational decision

When you meet someone for the first time, take in a book's cover, or glance at a storefront, your mind rapidly constructs an initial impression. These instant perceptions stick around for a while, even when they're unfounded. But in a turn of events, new research suggests sleeping could aid in perceiving beyond the "book's cover" and help us make better decisions. A strong first impression A team at Duke University recently rolled out an intriguing study. The researchers addressed the age-old question - does it pay off...

People have a stronger connection to their dogs than previously thought, according to a recent survey conducted by&nbsp;<a href="https://www.onepoll.us/">OnePoll</a>&nbsp;in partnership with&nbsp;<a href="https://www.puppyspot.com/">PuppySpot</a>. Out of the 2,000 American dog owners surveyed, 69 percent considered their dog their best friend, 73 percent claimed that having a dog has improved their emotional well-being, and a staggering 83 percent of respondents who also had children strongly agreed that taking care of their dogs is as important as taking care of their children.



“As a community of dog lovers, we know firsthand about the various ways dog parents show love and affection to their fur baby, and how these moments build trust and create a life-long bond,” said Claire Komorowski, the CEO of PuppySpot. “Whether it’s through long walks, special treats, new toys or, simply some cuddles, every dog needs to be cared for in a way that shows them just how special and adored they are.”



Indeed, the survey results show that dog owners love pampering their pet companions with “treats and cuddles,” “new toys,” or “long walks.” Three quarters of the respondents claimed they spend over 300 hours per year looking for the best treats and toys available on the market, while 57 percent of the participants never failed to celebrate their dogs’ birthdays.



Dog “parents” also seem to have a tough time staying away from their pups. Many take their dogs with them when they have to run errands (51 percent) or when they are meeting their families and friends (40 percent). Moreover, two in five dog owners look for restaurants that allow pets, while 35 percent of the respondents prioritize pet-friendly vacation spots.



Most respondents recall bringing home their newly acquired dog as the happiest day of their lives (72 percent), and highly cherish other memories, such as when their dog first jumped or fell asleep on their lap. Finally, the fact more than 8 in 10 participants who also had children did not hesitate to declare that they consider their dogs as important as their children is further proof that, for most people, their relationship with their furry companions is highly significant, offering strong emotional rewards.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

People have deep emotional connections with their dogs

People have a stronger connection to their dogs than previously...

A new study led by the <a href="https://www.tum.de/">Technical University of Munich</a> (TUM) has found that physical activity is highly beneficial for primary school <a href="https://www.earth.com/news/exposure-to-green-space-reduces-oxidative-stress-in-children/">children</a>. According to the researchers, there is a strong correlation between physical fitness, concentration, and health-related quality of life in young children. Moreover, these children were more likely to be later on admitted to higher-level grammar schools than those with less sporting abilities.



The researchers investigated the benefits of sport activities on a cohort of 3285 girls and 3248 boys from Bavaria's Berchtesgadener Land district. By internationally standardized test procedures, the scientists assessed the relationship between physical strength and endurance and the ability to concentrate.&nbsp;



They found that the higher the level of children’s physical fitness, the better they could concentrate and the higher their health-related quality of life. While the boys did better on fitness tests, the girls scored higher in terms of concentration and quality of life values. Overweight and obese children had significantly poorer scores for health-related quality of life, physical well-being, self-esteem, and well-being in friendships. Moreover, physically fit primary schoolers had higher chances to enroll in good secondary schools later on.



“Primary school pupils with good physical fitness and a good ability to concentrate are more likely to make it to secondary grammar schools,” said study co-author Renate Oberhoffer-Fritz, a professor of Preventive Pediatrics at TUM.



“This means it's all the more important to encourage motor development in children at an early stage, since this can also have a positive impact on the development of mental fitness. Collaboration among parents, schools, communities, and athletic clubs is very important when it comes to creating a comprehensive and appropriate range of possibilities.”&nbsp;&nbsp;&nbsp;



An important outcome of this study is that, since 2019, the Berchtesgadener Land District Administration Office has been giving all first-grade pupils in the area a voucher for a one-year membership in a sports club. “This is a great example for how different stakeholders can work together and help motivate children to be more athletically active,” concluded study senior author Thorsten Schulz, a professor of Preventive Pediatrics at TUM.



The study is published in the <a href="https://www.mdpi.com/2077-0383/11/5/1326">Journal of Clinical Medicine</a>.&nbsp;



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Sport improves children’s concentration and quality of life

A new study led by the Technical University of Munich...

Given the recent focus on how <a href="https://www.earth.com/news/can-pollen-protect-pollinators-from-pathogens/">pathogens</a> can be transmitted from animal to human populations, veterinary nutritionists from the North Carolina State University College of Veterinary Medicine wondered about the extent to which pet owners follow the FDA guidelines for the hygienic handling and preparation of pet food. They decided to carry out a survey of pet owners to understand the common practices used when handling pet food and pet feeding bowls.



Pet food and dishes need to be handled in such a way that the potential health risks for dogs and people alike are minimized. Young children are particularly prone to picking up infections as their immune systems are not fully developed and they frequently put their hands in their mouths. In addition, people with compromised immune systems may be susceptible to pathogens from pet foods and dishes that are not handled hygienically.&nbsp;



Because of these factors, the FDA has issued guidelines and protocols for safe pet food and dish handling procedures. This information is available online but is rather limited. In order to understand the impact of these guidelines, Dr. Emily Luisana of North Carolina State University in Raleigh, and colleagues, conducted a survey of 417 dog owners. The results of this research are published today in the open-access journal <a href="https://journals.plos.org/plosone/">PLOS ONE</a>.



The researchers visited dog owners at their homes and collected data on pet feeding and food dish hygiene. They also swabbed 68 food dishes to test for the presence of bacteria. They then assigned the owners of these 68 dishes randomly into one of three groups.



In the first group, the owners were asked to follow the FDA guidelines for pet food and dish handling for the following week. In the second group, the owners were told about these FDA guidelines but were not specifically instructed to do anything different when preparing their dog’s food. Owners in the last group were asked to follow specific hygiene guidelines extrapolated from the Human Food Code when preparing their pet’s food during the following week. After the week had passed, the researchers tested all 68 food bowls again for bacterial contamination.&nbsp;



The researchers found that less than five percent of the dog owners surveyed had heard of the FDA guidelines on pet food and dish handling. Only 34 percent of owners washed their hands after preparing dog food and 33 percent prepared their dog’s food on the same surface that was used for the preparation of human food. Of the households surveyed, 36 percent of them included immunocompromised individuals or children under the age of 13.&nbsp;



In the follow-up analysis of food bowl contamination, the bowls of owners who had followed the FDA or the Human Food Code protocols all showed a reduction in bacterial concentrations. In comparison, there was no reduction where owners had not specifically been instructed to follow more hygienic procedures. In the follow-up survey, only eight percent of pet owners who had followed the guidelines for more hygienic practices said they would continue with these practices in future.&nbsp;



Dog feeding dishes and water bowls have been found to harbor potentially harmful bacteria in a number of previous studies. Bacterial species such as Escherichia coli, Staphylococcus aureus and Clostridium difficile have all been recorded in samples from pet feeding dishes or water bowls. A 2006 study found that pet food bowls had the ninth highest levels of bacteria out of 32 household items analyzed. This supports the idea that dog dishes can be a source of bacterial contamination in a household setting.



The researchers concluded that, although their study was small, the application of FDA or Human Food Code guidelines resulted in a decrease in the bacterial contamination of pet feeding bowls. They found that washing bowls after use reduced bacterial levels and that washing with hot water was most effective.&nbsp;



The experts feel that pet owners need to be better educated and informed about hygienic ways to prepare, handle and store pet food. These guidelines should be written and need to be accessible on dog food packaging and in the veterinarian’s rooms in order to reach as many pet owners as possible.&nbsp;&nbsp;



“I hope this study makes pets happier and healthier!” said lead author Emily Luisana. “Pet owners should know that pet food bowls can harbor bacteria and that recommendations exist for minimizing that risk.”



“Most pet owners are unaware that pet food bowls can be a hidden source of bacteria in the household. Knowing how to mitigate this risk and practice proper pet food storage and hygiene may make for a happier, healthier household," concluded the study authors.&nbsp;



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Most U.S. dog owners don’t follow hygienic practices when preparing pet food

Given the recent focus on how pathogens can be transmitted...

A new study conducted by a team of researchers from the <a href="https://www.pcrm.org/">Physicians Committee for Responsible Medicine</a> has found that a low-fat vegan diet, without calorie restrictions, significantly improves joint pain in patients with rheumatoid arthritis – an autoimmune condition which typically causes joint pain, swelling, and eventually permanent joint damage. Moreover, study participants following such a diet have also experienced weight loss and improved <a href="https://www.earth.com/news/food-can-work-as-well-as-medication-to-lower-cholesterol/">cholesterol</a> levels.



“A plant-based diet could be the prescription to alleviate joint pain for millions of people suffering from rheumatoid arthritis,” said study lead author Neal Barnard, the president of the Physicians Committee. “And all of the side effects, including weight loss and lower cholesterol, are only beneficial.”



At the outset of the study, Dr. Barnard and his team asked participants to use a visual analog scale (VAS) to rate the severity of their joint pain in the two weeks preceding the study, from “no pain” to “pain as bad as it could possibly be.” Based on tender joints, swollen joints, and C-reactive protein values, the scientists also calculated participants’ Disease Activity Score-28 (DAS28), which indicates the level of inflammation in the body.



The study involved 44 participants with rheumatoid arthritis who were assigned to one of two groups for a period of 16 weeks. One of the groups followed a vegan diet for a month, with the elimination of additional foods for three weeks, then the gradual reintroduction of these foods over a period of nine weeks. The other group had no diet restrictions, but were asked to take a daily placebo capsule. Afterwards, the groups switched diets for another 16 weeks.&nbsp;



During the vegan phase, participants’ DAS28 decreased two points of average, compared to a 0.3 decrease in the placebo group, indicating diet-induced reductions in joint pain. The average number of swollen joints has also decreased from 7.0 to 3.3 in the vegan phase, while the VAS ratings have improved significantly.



Besides offering strong evidence that a vegan diet can significantly ease joint pain and reduce inflammation in patients with rheumatoid arthritis, this study also found that, in the vegan diet group, participants’ body weight decreased by about 14 pounds on average, and cholesterol levels improved.



The study is published in the <a href="http://dx.doi.org/10.1177/15598276221081819">American Journal of Lifestyle Medicine</a>.&nbsp;&nbsp;



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Vegan diet reduces arthritis pain and inflammation

A new study conducted by a team of researchers from...

A 2016 study found that 22 percent of <a href="https://www.earth.com/news/covid-doubles-the-risk-of-severe-pregnancy-complications/">pregnant</a> women in Colorado had detectable levels of cannabinoids in their bodies. Research shows that exposure to cannabis, including the popular CBD products, during pregnancy put children at risk for health problems.&nbsp;



CBD is seen as non psychoactive and is advertised as helping a host of psychological issues such as anxiety, depression and post traumatic stress disorder. Because CBD is seen as therapeutic and few side effects are noted, it’s used in a whole host of products from tinctures and lotions to food.&nbsp;&nbsp;



The risks of cannabinoid exposure in the womb for the children include risks of obesity, high blood sugar and behavioral problems.&nbsp;&nbsp;&nbsp;&nbsp;



“We found that cannabis use during pregnancy was linked to increased fat mass percentage and fasting glucose levels in 5-year-old children,” said Dr. Brianna Moore of the <a href="https://coloradosph.cuanschutz.edu/">Colorado School of Public Health</a>. “We would encourage women to refrain from using any cannabis while pregnant or breastfeeding to minimize adverse health effects in the offspring.”



The researchers tested for cannabinoids in urine samples from 103 pregnant women, and 15 percent of those tested had detectable levels of cannabinoids in their urine. The children of the women who tested positive for cannabinoids had children with higher fat content and higher fasting glucose levels than the children of women without cannabinoids in their urine. This is clear evidence of the negative impact of using cannabinoid products when pregnant. Still yet, the scientists caution that more research is needed to fully understand the full effect caused by cannabis use in pregnant women.&nbsp;&nbsp;



“More studies are needed to understand how exposure to different cannabinoids during pregnancy may impact the offspring,” said Dr. Moore.



The research, which was funded by the National Institutes of Health, is <a href="https://academic.oup.com/jcem/advance-article/doi/10.1210/clinem/dgac101/6554396?login=false">published</a> by The Endocrine Society.&nbsp;



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By <a href="mailto:zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Prenatal exposure to cannabis linked to health risks later in life

A 2016 study found that 22 percent of pregnant women...

The global population is <a href="https://www.earth.com/news/scientists-can-reverse-the-aging-process-in-middle-aged-mice/">aging</a>, and policy makers are interested in the life satisfaction of older adults after leaving the workforce. A new study has found that the personality traits of older adults are connected to the paths they take, and their overall well-being, once they leave their jobs.&nbsp;



To understand this connection, researchers analyzed data from more than 2,000 adults aged 50 to 75 who participated in the British Household Panel Survey. Participants were surveyed against the “Big Five'' personality traits as a standard evaluation. They were also surveyed on life satisfaction after leaving their jobs.&nbsp;



The results of the study showed connections between the routes people took to leave their jobs and their satisfaction with life, income, and leisure which varied according to personality traits.



For example, respondents who identified as conscientiousness had an increased satisfaction with leisure time after mandatory retirement, and increased life satisfaction amongst those who became unemployed. This suggests that conscientious individuals are proactive in finding new fulfilling lifestyles after work.



The extraverted respondents who retired early had a lower satisfaction with life, income, and leisure. However, the extroverts who stopped working due to ill health or caregiving demands had a higher satisfaction with leisure time. This could suggest that extraverts miss social relationships at work, but might also be motivated to find sociable, rewarding hobbies.



The three remaining traits were agreeableness, openness, and neuroticism. Amongst these, results did not find relationships or patterns with life satisfaction.



Regardless, the findings are interesting and could help policy makers guide targeted interventions to support the well-being of aging adults. Researchers consider this especially relevant during the mass exodus of workers throughout the pandemic.



“Our study uncovered associations between the routes people took to exit their jobs and their subsequent satisfaction with life, income, and leisure," said the study authors. "These associations varied according to people’s personality traits. Conscientious individuals were more proactive in finding new fulfilling life patterns.”



The research is published in the journal <a href="https://journals.plos.org/plosone/">PLoS ONE</a>.



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By <a href="mailto:katherinebucko@gmail.com">Katherine Bucko</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Personality traits linked to life satisfaction after work

The global population is aging, and policy makers are interested...

Eating two or more servings of avocado on a weekly basis can lead to lower risk of cardiovascular disease, according to new research published by the <a href="https://www.heart.org/">American Heart Association</a>. This benefit was also present when substituting fats containing foods like butter, cheese and processed <a href="https://www.earth.com/news/plant-based-meats-are-better-for-heart-health/">meats</a> with avocado alternatives.&nbsp;



Avocados have sky-rocketed in popularity with health food trends. They contain dietary fiber, healthy fats and other favorable components associated with cardiovascular health.&nbsp;



This study is the first and largest prospective study with a positive association between higher avocado consumption and lower cardiovascular events, such as coronary heart disease and stroke.



“Our study provides further evidence that the intake of plant-sourced unsaturated fats can improve diet quality and is an important component in cardiovascular disease prevention,” said study lead author Dr. Lorena S. Pacheco. “These are particularly notable findings since the consumption of avocados has risen steeply in the U.S. in the last 20 years, according to data from the U.S. Department of Agriculture.”



For more than three decades, the researchers followed more than 68,780 women (ages 30 to 55 years) from the Nurses’ Health Study and more than 41,700 men (ages 40 to 75 years) who participated in the Health Professionals Follow-up Study. During the 30 years of follow up, the experts documented 9,185 coronary heart disease events and 5,290 strokes.



The diet of each participant was assessed by questionnaires every four years. The researchers calculated avocado intake where one serving equaled half an avocado.



The results of the study offer guidance for healthy diets. The experts found that participants who ate at least two servings each week had a 16 percent lower risk of cardiovascular disease and a 21 percent lower risk of coronary heart disease compared to individuals who never or rarely ate avocados.



Replacing half a serving daily of margarine, butter, egg, yogurt, cheese or processed meats with avocado was associated with a 16 to 22 percent lower risk of cardiovascular disease events.



“These findings are significant because a healthy dietary pattern is the cornerstone for cardiovascular health, however, it can be difficult for many Americans to achieve and adhere to healthy eating patterns,” said Dr. Cheryl Anderson, chair of the American Heart Association’s Council on Epidemiology and Prevention.



Healthcare professionals can now recommend that patients replace certain spreads and saturated fat-containing foods, such as cheese and processed meats, with avocado is something physicians and other health care practitioners such as registered dietitians can do when they meet with patients, especially since avocado is a well-accepted food, said Dr. Anderson.



This aligns with the <a href="https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/nutrition-basics/mediterranean-diet">American Heart Association’s guidance to follow the Mediterranean diet</a> – focused on fruits, vegetables, grains, beans and fish. Researchers suggest that we need strategies that recommend healthy diets, such as the Mediterranean diet, rich in fruits and vegetables. While recognizing no one food is a magic solution, researchers emphasize that avocados have demonstrated health benefits.&nbsp;



“This is promising because it is a food item that is popular, accessible, desirable and easy to include in meals eaten by many Americans at home and in restaurants.” said Dr. Anderson.



The study is published in the <a href="https://www.ahajournals.org/journal/jaha">Journal of the American Heart Association</a>.



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By <a href="mailto:katherinebucko@gmail.com">Katherine Bucko</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Avocados substantially reduce the risk of heart disease

Eating two or more servings of avocado on a weekly...

When <a href="https://www.earth.com/news/exposure-to-green-space-reduces-oxidative-stress-in-children/">children</a> learn to read they have to work out the connections between the sounds they hear in words and the letters they read. Known as letter-sound mapping, this skill ultimately helps young people to build word recognition and decoding skills that improve fluency in both reading and writing.&nbsp;Previous research has shown that proficiency in letter-sound mapping in young children is strongly associated with later reading success, but there is little research about the relationship between sleep, memory development, and literacy skills.



It is common practice to allow preschool children to nap during the daytime, and researchers from Macquarie University in Australia, the University of Oxford, the University of York and the University of Sheffield wondered what impact these short periods of sleep would have on the acquisition of letter-sound skills. They monitored the learning progress of thirty-two three-to-five-year-old children from two daycare centers in Sydney, Australia, who napped regularly.&nbsp;



Each child participated in seven sessions, over two to four weeks, which included the following:



<ul><li>a pre-test that was used to establish baseline levels of letter-sound knowledge;</li><li>letter-sound mapping training – this was held a week apart under both “nap” and “no-nap” conditions;&nbsp;&nbsp;</li><li>post-tests that were used to assess learning, once after a nap and once after a period of wakefulness.&nbsp;</li></ul>



The knowledge gained during training was also reassessed one day later, to determine whether any effect of napping on learning was retained. Each session assessed&nbsp;letter-sound mappings and using explicit learning (e.g., “Which sound does the letter C make?”) and knowledge generalization tasks (e.g., “Here’s Tav and Cav, which one is /kav/?”).



The results of the study, published today in the journal <a href="https://www.cdc.gov/ncbddd/childdevelopment/facts.html">Child Development</a>, find that a daytime nap improves a child’s ability to learn letter sounds and to transfer this newly learned knowledge to the recognition of printed letters in a word; this implies that naps could be beneficial for preschool children’s learning of letter-sound mappings.



“Having a nap after learning might facilitate the capacity to utilize newly learned information in a new task,” said Hua-Chen Wang, Lecturer in the School of Education at Macquarie University. “We found a positive nap effect on children’s learning of letter-sound mappings, and in particular, on using that knowledge to read unfamiliar words.”



The researchers hypothesized that, if a nap benefits a child’s letter-sound skills, then children who napped would perform better on both the explicit learning tasks (when children were asked to produce or recognize the letter sounds they learned earlier) and knowledge transfer tasks (when children were asked to identify unfamiliar words containing the letter sounds they learned earlier). The findings showed that napping did positively affect performance on the knowledge transfer test.&nbsp;Furthermore, this nap benefit was maintained the following day.&nbsp;



It is true that the research was not carried out in a laboratory and that this prevented the measurement of physiological features of sleep, such as the amount of time spent in REM (rapid eye movement) sleep and whether this was related to improved learning. This would perhaps be an appropriate direction for future research. The authors also note that, since the nap effect was only found in generalizing letter-sound knowledge to recognizing printed words, but not on the explicit learning measures, future research on this topic with a larger sample size is recommended.&nbsp;&nbsp;



“The research provides initial evidence that naps facilitate the acquisition and application of letter-sound mappings, abilities that are crucial to early reading development,” said Anne Castles, Professor of Psychological Studies at Macquarie University.&nbsp;&nbsp;“These findings may have implications for creating the optimal conditions for the acquisition of this fundamental literacy skill in preschool children.”



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Daytime napping may boost literacy skills in preschoolers

When children learn to read they have to work out...

Bone mineral density (BMD) at the hip is known to decrease rapidly after menopause, causing women older than 50 more likely to experience hip fractures, which often lead to hospitalization, loss of independence, diminished quality of life, and shorter life span. A new study led by <a href="https://www.psu.edu/">Pennsylvania State University</a> has found that daily prunes consumption could significantly increase bone <a href="https://www.earth.com/news/plant-based-omega-3s-are-beneficial-for-heart-health/">health</a> and reduce the risk of fractures in postmenopausal women.&nbsp;



By investigating a cohort of 235 postmenopausal women, the scientists found that those who consumed 50 grams of prunes (5-6 prunes) a day for one year maintained hip BMD, while those from a control group who ate no prunes lost significant bone mass. Moreover, hip fracture risk increased in the participants from the control group, while remaining stable among the prune eaters.



“It is exciting that the data from our large randomized controlled trial in postmenopausal women showed that consuming 5 to 6 prunes a day demonstrated the benefit of protecting from bone loss at the hip,” reported study lead author Mary Jane De Souza, a professor of Physiology and Kinesiology at Penn State.



“Our data supports the use of prunes to protect the hip from bone loss post menopause. Indeed, this data may be especially valuable for postmenopausal women who cannot take pharmacological therapy to combat bone loss and need an alternative strategy.”



Prunes are nutrient-dense fruits, containing a powerful mix of vitamins and nutrients known to improve bone mass, such as boron, potassium, copper, or vitamin K. Moreover, they are also rich in phenolic compounds which have a marked antioxidant effect.



“Just a handful of prunes can easily be added to anyone’s lifestyle,” said <a href="https://californiaprunes.org/california-prune-board/">California Prune Board</a>’s Nutrition Advisor Andrea N. Giancoli. “Prunes pair with so many flavors and textures and work well for individualized nutrition plans. Mix them into salads, trail mixes, smoothies, savory dishes – you name it. The naturally sweet flavor of prunes makes them a versatile ingredient or convenient snack for anyone.”



The study findings were presented at the <a href="https://virtual.wco-iof-esceo.org/">World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Disease</a>, the most important clinical conference on bone, joint, and muscle health.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Eating prunes reduces the risk of hip fractures

Bone mineral density (BMD) at the hip is known to...

Woman,Meditating,Practicing,Yoga,Exercise,In,The,Mountain,At,Sunset

Many studies have argued that spirituality could help improve the quality of life for people with chronic conditions such as <a href="https://www.earth.com/news/artificial-sweeteners-linked-to-increased-risk-of-cancer/">cancer</a>. According to an extensive literature review led by <a href="https://medschool.duke.edu/">Duke University School of Medicine</a>, spirituality can also have a positive impact on quality of life for patients with heart failure. The scientists argue that spirituality should be considered a potential target for palliative care interventions to improve patient-centered and clinical outcomes in these patients.



“Patients who have heart failure experience a poorer quality of life compared to their peers, with high levels of depression, anxiety, and spiritual distress,” said study lead author Rachel S. Tobin, a resident in Internal Medicine at <a href="https://www.dukehealth.org/hospitals/duke-university-hospital">Duke University Hospital</a>. “Contributing to diminished quality of life is the fact that heart failure, unlike many other chronic diseases, is very unpredictable and can lead to hopelessness, isolation, and altered self-image.”



The <a href="https://nam.edu/">National Academy of Medicine</a> defines spirituality as “the needs and expectations which humans have to find meaning, purpose, and value in their life. Such needs can be specifically religious, but even people who have no religious faith or are not members of an organized religion have belief systems that give their lives meaning and purpose.”



By conducting a literature review of 47 articles exploring the role of spirituality in heart failure patients, Dr. Tobin and her colleagues have found that searching for meaning, purpose, and value in life is crucial for such patients. Moreover, spiritual counseling as palliative care has often been associated with decreased levels of anxiety and depression, thus playing a fundamental role in improving the life of these individuals.



“The literature suggests that not only can spirituality improve quality of life for the patient, it can help support caregivers and potentially help heart failure patients from needing to be readmitted to the hospital,” Dr. Tobin explained.&nbsp;



“What we have suggested and are now doing is developing a spirituality screening tool, similar to ones used to screen for depression. This can be used to identify heart failure patients in palliative care who are at risk for spiritual distress. However, this is just a start. More research needs to be done.”



The study is published in the journal <a href="https://www.sciencedirect.com/science/article/abs/pii/S2213177922001081?via%3Dihub#!">JACC Heart Failure</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Spirituality can help people with heart failure

Many studies have argued that spirituality could help improve the...

Huntington,Beach,,Ca,/,Usa,-,July,26,,2019:,The

There are more than 7,000 different <a href="https://www.earth.com/news/study-reveals-new-clues-about-self-fertilization-in-plants/">plant</a> species on Earth that are edible and can be used for food. And yet 90 percent of humanity’s energy intake is derived from the use of only 15 crop plant species. This means that humans focus on a very small proportion of the available diversity of plant species from which to derive their nutrition. It also means that very few of the many different edible species are actually cultivated, while the rest are ignored or may even verge on the edge of extinction.&nbsp;



In 2014, fewer than 200 species of plants were cultivated to any meaningful extent,&nbsp; and just nine crops accounted for more than 66 percent by weight of all crop production in that year. This trend impacts agrobiodiversity – the variety and variability of animals, plants and microorganisms that are used directly or indirectly for food and agriculture.



One of the reasons for this concerning trend is that the world is gradually adopting a global diet of ultra-processed foods. These foods, which include sweetened or salty snacks, soft drinks, instant noodles, reconstituted meat products, pre-prepared pizza and pasta dishes, biscuits and confectionery, are made by assembling food substances and ‘cosmetic’ additives (notably flavors, colors and emulsifiers) through a series of industrial processes.



According to a commentary published today in the journal&nbsp;<a href="https://gh.bmj.com/">BMJ Global Health</a>, the fact that sales and consumption of these ultra-processed foods are growing in all regions and in almost all countries, is a matter of grave concern. These foods have come at the expense of the cultivation, manufacture, retail and consumption of fresh and minimally processed foods that comprise traditional diets. Not only are ultra-processed foods bad for human health, but they also have a negative impact on the biodiversity of plant species available for consumption by humans.&nbsp;&nbsp;



The authors of the commentary, nutrition experts from Brazil, the US and Australia, warn that ultra-processed foods rely on ingredients from very few plant sources and that people’s diets are thus lacking in nutritional diversity. They state that more than four billion people in the world today rely on just three crop plants – rice, wheat and maize – for the majority of their nutritional input.



They also refer to an ongoing study of 7,020 ultra-processed foods sold in the main Brazilian supermarket chains, which has found that their five main ingredients included food substances derived from sugar cane (52.4%), milk (29.2%), wheat (27.7%), corn (10.7%) and soy (8.3%). These few ingredients in ultra-processed foods were thus replacing the diversity of wholefoods necessary for a balanced and healthy diet.&nbsp;



In addition, the authors warn that producing processed foods involves the use of large areas of land, as well as supplies of water, energy, herbicides and fertilizers, making it unhealthy and unsustainable for the planet as well. Processed foods are often wrapped in copious packaging, which ends up in landfills or polluting the environment, and the overall process is responsible for releasing greenhouse gases that negatively affect the climate.&nbsp;



Ultra-processed foods are the basis of a "globalized diet" that is becoming more popular and available throughout the world. Currently, consumption of these foods is growing fastest in upper-middle-income and lower-middle income countries, and yet there is still very limited awareness of their damaging impact on planetary health. And even though many people are aware of the negative effects of these foods on human health, discussion of future approaches concerning ultra-processed foods is missing from international development agendas.



“The very rapid rise of ultra-processed foods in human diets will continue to place pressure on the diversity of plant species available for human consumption," said the study authors.&nbsp;



“Future global food systems fora, biodiversity conventions and climate change conferences need to highlight the destruction of agrobiodiversity caused by ultra-processed foods, and to agree on policies and actions designed to slow and reverse this disaster."



“Relevant policy makers at all levels, researchers, professional and civil society organizations, and citizen action groups, need to be part of this process.”



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By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Popular foods are bad for humans and our planet

There are more than 7,000 different plant species on Earth...

Hands,Holding,Smartphone

Boys and girls begin experiencing some of the negative impacts of social media use at different <a href="https://www.earth.com/news/scientists-can-reverse-the-aging-process-in-middle-aged-mice/">ages</a>, according to a new study published in the journal <a href="https://www.nature.com/ncomms/">Nature Communications</a>.



Researchers from the <a href="https://www.cam.ac.uk/">University of Cambridge</a>, University of Oxford, and the Donders Institute for Brain, Cognition and Behaviour looked at 84,000 people between 10 and 80 years old. Specifically, they followed 17,400 people between 10 and 21 years old.&nbsp;



"Technological innovations have shaped the ways in which we connect with each other. Yet the recent adoption of social media has fundamentally transformed how humans spend their time, portray themselves and communicate," wrote the study authors.



"The repercussions of such changes have induced widespread concern. Yet there is still considerable uncertainty about how social media use relates to well-being."



The experts found that for girls between the ages of 11 and 13, and boys between the ages of 14 and 15, the more social media consumed - the more likely a young person was to have a lower life satisfaction rating 12 months later.&nbsp;



Lower social media use was associated with higher life satisfaction. More disturbing is that a decrease in life satisfaction in both sexes and across all ages studied leads to more social media use.&nbsp;



It is indeed a vicious circle, and the why is very complicated, explained Sarah-Jayne Blakemore, professor of Psychology and Cognitive Neuroscience at Cambridge.



"It's not possible to pinpoint the precise processes that underlie this vulnerability. Adolescence is a time of cognitive, biological and social change, all of which are intertwined, making it difficult to disentangle one factor from another," said Blakemore.



"For example, it is not yet clear what might be due to developmental changes in hormones or the brain and what might be down to how an individual interacts with their peers."



The paper does not answer all the questions surrounding social media and its effect on young people. Still, it clarifies that social media is damaging to many of our children and teenagers.&nbsp;



The researchers hope that this study will garner enough attention from social media companies and the government to ensure that independent research is carried out so that we can further understand and mitigate the harm created by this ubiquitous form of media.



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By <a href="mailto:nire518@gmail.com">Erin Moody </a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Social media impacts boys and girls at different ages

Boys and girls begin experiencing some of the negative impacts...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

How does salt makes things taste better?

[sendtonews key="X0f6OHYoI4-2310561-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Santiago, Chile in South America

[sendtonews key="JRaP49ISmm-2357509-12187" type="single"] Today’s Video of the Day from the...

Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

[sendtonews key="e4ZG0Jawp3-2374785-12187" type="single"] Astronomers at Johns Hopkins University have created...

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Lesotho: Africa's "Kingdom in the Sky"

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The province of Zaragoza in northeast Spain

[sendtonews key="oL4FnPTGCV-2384527-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The rapid retreat of the Columbia Glacier

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The Pyrenees Mountains in southwest Europe

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Two distant planets may be "water worlds"

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Satellites reveal how Earth's systems are interconnected

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes a new map of Mars that is providing insight into the planet’s watery past. The map also reveals where future missions could safely land on Mars.&nbsp;



The map has been created over the last decade using observations of water-rich rocks and mineral deposits. The images were captured by ESA’s Mars Express and NASA’s Mars Reconnaissance Orbiter.



"A big surprise is the prevalence of these minerals, with the map revealing hundreds of thousands of water-affected locations in the oldest parts of the planet," says ESA. "The new data will help answer exciting questions about Mars’ climate history, whether water was globally persistent or confined to short, intense episodes, and whether the conditions were ever suitable for life."



"Specifically, the map shows the locations and abundances of aqueous minerals. These are from rocks that have been chemically altered by the action of water in the past, and have typically been transformed into clays and salts."



According to John Carter of the Institut d’Astrophysique Spatiale (IAS), our collective understanding of Mars has been oversimplified. He explained that planetary scientists have tended to think that only a few types of clay minerals on Mars were created during its wet period, then as the water gradually dried up, salts were produced across the planet.



The new map shows that the composition of Mars is much more complicated than what we thought. For example, while many salts formed after Martian clays, there are some salts that are presumed to be older than some of the clays.&nbsp;



“The evolution from lots of water to no water is not as clear cut as we thought, the water didn’t just stop overnight. We see a huge diversity of geological contexts, so that no one process or simple timeline can explain the evolution of the mineralogy of Mars. That’s the first result of our study. The second is that if you exclude life processes on Earth, Mars exhibits a diversity of mineralogy in geological settings just as Earth does,” said Carter.



Video Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The history of Mars is much more complex than we thought

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Today's Video of the Day from the <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes how cavefish adapted to a sedentary lifestyle over tens of thousands of years. 



The experts found that the muscle metabolism of cavefish has been genetically reprogrammed over time. As a result, the animals have experienced major changes in their morphology and behavior. Despite these changes, however, the cavefish remain healthy and fit.



The research may provide new clues about the evolutionary consequences of prolonged physical inactivity in humans.&nbsp;



“It’s no surprise that people are moving less and less as technology has advanced,” said Rohner. “With cavefish, we have a unique system where we can study what might happen if people remained couch potatoes over very, very long periods of time.”



Video Credit: Stowers Institute for Medical Research



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Cavefish are healthy despite their sedentary lifestyle

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> some of the most incredible waves in the world, as seen by Landsat satellites.



"With more than 370,000 miles of coastline on Earth, there are plenty of places where epic waves build up, curl over, and hurtle toward the shore.- much to the thrill of surfers," says NASA. "There are some places where these waves are so magnificent that they can be seen from space."



"With the broad perspective of satellites, we can see how these iconic waves develop into the world’s tallest, longest, fastest, and heaviest."



Video Credit: NASA Earth Observatory&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Satellites capture the world's biggest and fastest waves

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes why satellite images and measurements of our planet have become "essential to our survival, offering a new outlook of our world."&nbsp;



Rising sea levels pose one of the biggest societal threats associated with climate change. According to ESA, satellite altimeter missions such as Copernicus Sentinel-6 are essential in monitoring global and regional changes in sea level.



"Unbeknown to many, the island of Crete, Greece, plays an important role in the Copernicus satellite altimetry constellation and on an international stage," reports ESA.



"Satellite altimetry data have to be continuously monitored at the ESA’s Permanent Facility for Altimetry Calibration where different techniques have pioneered the use of transponders to provide the best measurements to validate satellite altimeters in space soon after launch."



Dr. Craig Donlon explains that, by understanding planet Earth through satellite measurements, we are able to find evidence of change.&nbsp;



Video Credit: European Space Agency&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Satellites have become essential to our survival

[sendtonews key="761m2QQvR1-2035772-12187" type="single"] Today’s Video of the Day from the...