A new study has found that variability in night-to-night sleep time and reduced sleep quality adversely affect the ability of older adults to recall information about past events. The study also found unexpected racial differences in the type of sleep patterns tied to lower memory performance across both younger and older African American research participants.
Name-calling, hair pulling or cyberbullying: About a tenth of adolescents across the globe have been the victim of psychological or physical violence from classmates at least once in their lives. A new study carried out by researchers at Martin Luther University Halle-Wittenberg (MLU) has shown that victims and their perpetrators both suffer as a result
Substituting fishmeal in aquaculture feeds with plant ingredients may not be as beneficial for the environment as many predict, according to new research from an international team of experts. Manufacturers of commercial fish feed are increasingly substituting fishmeal — a powder made from fish — with crop-based ingredients in a move driven by economic incentives
New research, published in Obesity, has found that people with obesity are not only stigmatised, but are blatantly dehumanised. Obesity is now very common in most of developed countries. Around one third of US adults and one quarter of UK adults are now medically defined as having obesity. However, obesity is a complex medical condition
Drinking a casein shake just before overnight sleep increases gains in muscle mass and strength in response to resistance exercise. But to date, no study has directly addressed whether this effect is due to increased total protein intake only, or if a bedtime beverage is better. According to a review published in Frontiers in Nutrition,
Atopic dermatitis, a common inflammatory skin condition also known as allergic eczema, affects nearly 20 percent of children, 30 percent of whom also have food allergies. Scientists have now found that children with both atopic dermatitis and food allergy have structural and molecular differences in the top layers of healthy-looking skin near the eczema lesions,
A personal survey of patients with atrial fibrillation (AF), one of the most important causes of irregular heartbeats, has found that the majority of triggers for the condition are easily modifiable lifestyle choices, including alcohol, caffeine, exercise and lack of sleep. The findings, identified by researchers at UC San Francisco in collaboration with patients and
The complex sugars found in human breastmilk, long believed to be fixed in their composition, may change in women who are taking probiotics, according to new research from the University of Rochester Medical Center (URMC). The finding, published in a research letter in JAMA Pediatrics, upends what scientists thought of human milk oligosaccharides (HMOs) —
Children around the world are not moving enough to maintain healthy growth and development, according to a global report released today. The report by the Active Healthy Kids Global Alliance (AHKGA) compared 49 countries from six continents to assess global trends in childhood physical activity in developed and developing nations, resulting in the “Global Matrix
Repetition is the best method for memorization, for neurons themselves. This is the principle behind what neurobiologists call sequence reactivations: during sleep, neurons in the hippocampus related to a task activate very quickly in turn in a precise order, which consolidates the memory of this task. Sequence reactivations are fundamental for long-term memorization and for
A sedentary lifestyle combined with a diet dominated by processed foods has widely resulted in a range of conditions including diabetes, obesity, and high blood pressure, which are known collectively as metabolic syndrome. Although many insights into the causes of metabolic syndrome have been made, much remains to be understood about the complex interplay among
Saliva is crucial for tasting and digesting food, but scientists have now found that it may have another, more subtle role. Salivary proteins could be part of a feedback loop that influences how food tastes to people — and by extension, what foods they’re willing to eat. The researchers hope that, one day, their findings
Poor sleep can literally kill your social life. Researchers at the University of California, Berkeley, have found that sleep-deprived people feel lonelier and less inclined to engage with others, avoiding close contact in much the same way as people with social anxiety. Worse still, that alienating vibe makes sleep-deprived individuals more socially unattractive to others.
Diet modification can be a vital step to prevent cardiovascular disease. While various biological, economical, physical, social and psychological factors influence food choices, interventions targeting these factors can lead to meaningful improvements in long-term eating habits, according to a review paper published today in the Journal of the American College of Cardiology. Research has consistently
Poor sleep quality appears to be an important risk factor for atrial fibrillation, report scientists in the first study of its kind to demonstrate a relationship between poor sleep quality independent of sleep apnea and a higher risk of atrial fibrillation (AF). Their findings are published in HeartRhythm. AF is an irregular, rapid heart rate
We’ve all experienced going to bed tired and waking up refreshed, yet how that happens at the molecular level remains a mystery. An international study published today in Nature sheds new light on the biochemistry of sleep need in the brain. According to the American Sleep Association, 50 million to 70 million U.S. adults have
New research in The FASEB Journal explored why a group of young, healthy adults residing at high altitude lost muscle mass while severely underfed and consuming the same high-protein diet that preserved muscle during weight loss at sea level. A team led by Stefan M. Pasiakos, PhD, a nutritional physiologist at the U.S. Army Research
Pilot data from a recent study suggest that sleep paralysis and dream-like hallucinations as you are falling asleep or waking up are widespread in student athletes and are independently associated with symptoms of depression. This study is the first to examine the relationship between these sleep symptoms and mental health in student athletes, independent of
Around two to six per cent of all people with obesity develop obesity already in early childhood; it’s in their genetic cards. Obesity-causal mutations in one of their ‘appetite genes’ gives them a strong genetic predisposition for developing obesity, also called monogenic obesity. Their experience of hunger is overruling and their feeling of satiety limited.
Just as we abide by an external time schedule to eat, sleep, and go to work, our body is similarly dictated by internal clocks. Known as circadian rhythms, these daily cycles keep us on a regular 24-hour day and are involved in numerous aspects of our well-being. When these biological clocks fail to work as