Articles tagged with Sleep
A recent study from the University of Toronto found that use of pre-workout dietary supplements is associated with five or fewer hours of sleep per night. The study analyzed data from over 16-30 year-old participants and found that those who used pre-workout supplements were more than twice as likely to report short sleep durations.
Researchers found that short and irregular weekday sleep significantly disrupts glucose metabolism, increasing type 2 diabetes risk. Even with extended weekend sleep, the body's ability to process glucose is impaired. Regular sleep patterns are crucial for glucose regulation and may impact the development of insulin resistance.
A trial from Hong Kong found that tai chi is comparable to cognitive behavioural therapy (CBT) in reducing symptoms of chronic insomnia. The study showed that tai chi was non-inferior to CBT at the 12-month follow-up, suggesting its potential as an alternative treatment approach for middle-aged and older adults.
A study of over 27,000 collegiate athlete sleep records found that early morning team practices lead to reduced sleep time and lower sleep efficiency scores. Male athletes averaged 30 minutes less sleep, while female athletes averaged 20 minutes less, with both experiencing longer wake-up times and reduced sleep quality.
A new study finds that people living with HIV experience higher rates of sleep issues even when virally suppressed, associated with a higher risk for heart disease, depression, and cognitive decline. The study highlights the importance of treating healthy sleep as a fundamental health right, not a luxury.
A study found a nearly linear relationship between nighttime light exposure and an increased risk of heart disease. The research suggests that reducing exposure to excessive artificial light at night can counteract the effects and may be a public health concern.
A new study uses fruit flies to explore the relationship between sleep and diet, finding that energy deprivation leads to increased feeding and sleeping behavior. The researchers propose that correcting sleep habits may help alleviate eating and metabolic disorders.
A study found that long-term use of melatonin supplements may increase the risk of heart failure, hospitalization, and death in adults with chronic insomnia. The research analyzed data from a large international database and found consistent and significant increases in serious health outcomes, even after balancing for other risk factors.
Researchers at UMass Amherst have developed an app that uses Apple Watch data to monitor sleep stages and predict Alzheimer's disease risk. The app, BIDSleep, collects heart rate data and feeds it into an AI model that accurately identifies sleep stages 71% of the time.
Researchers found that sleep-deprived individuals experience attentional failures coinciding with a flushing of CSF from the brain. During these lapses, physiological changes occur, including a flux of CSF out and then back in. The study suggests that the brain attempts to compensate for lost cleansing by initiating pulses of CSF flow.
A major study published in the European Respiratory Journal found that heatwaves increase the risk of moderate-to-severe obstructive sleep apnoea (OSA) by 13% during peak heatwave periods. The risk is higher when humidity is also high, with a 1.1% increase for every 1°C rise in nighttime temperature.
Poor sleep quality affects over 1 in 5 residents in long-term care facilities, leading to increased medication use, falls, and delirium. Modifiable risk factors like pain management, medication review, and improved sleep routines can help mitigate these issues.
Obstructive sleep apnea is increasingly being diagnosed in younger adults, challenging the stereotype that it only affects older or overweight individuals. Many people with sleep apnea remain undiagnosed due to daytime fatigue and overlooked symptoms like snoring or choking.
A new study using next-generation imaging technology discovered that when the brain is falling asleep, it shows a coordinated shift in activity. Areas involved in thinking, memory, and daydreaming quiet down and use less energy during NREM sleep.
Researchers identified a link between early adolescence sleep disruption and later suicide attempts. Adolescents who experienced difficulties maintaining and obtaining sufficient sleep were more likely to report a suicide attempt several years later.
A new study from UC San Francisco found that saturated fat affects the behavior of a protein called PER2, which orchestrates fat metabolism and circadian rhythms. Mice eating a diet high in hydrogenated fats struggled to adapt to winter, whereas those on unsaturated fat diets adjusted easily.
A new UTA study found that engaging in light activity, such as walking or doing chores, instead of sitting can lead to better feelings the next day. The research, published in Psychology of Sport and Exercise, suggests that even small changes to daily routine can have a positive impact on mood and energy.
A new study reveals that rising temperatures are causing widespread reductions in sleep duration across the globe, with warmer nights resulting in an average loss of 15-17 minutes of sleep. This is particularly concerning as the likelihood of experiencing short sleep increases by approximately 40% during heatwaves.
Eight finalists compete in November for the award, with innovations including non-invasive sleep studies and treatments for obstructive sleep apnea. The AASM's Sleep Medicine Disruptors event will be held in Austin, Texas, on November 14-15.
Researchers have discovered that deep sleep plays a crucial role in controlling cerebrospinal fluid dynamics, which is essential for clearing waste from the brain. During slow-wave sleep, changes in cerebrospinal fluid signals are time-locked to slow brain waves and other neural events.
A study published in PLOS Biology found that surgically disconnected neural tissue in epilepsy patients exhibits slow-wave patterns similar to those observed during deep sleep or anesthesia, suggesting absent or reduced awareness. The persistence of these patterns raises questions about the functional role of slow waves in the brain.
Researchers found that instructions improve recall more than emotional associations, but sleeping doesn't significantly impact memory. They discovered that sleep spindles are linked to better recall of negative words, while slow wave sleep negatively correlates with total recall.
Researchers identified five distinct sleep-biopsychosocial profiles, each associated with a unique pattern of brain connectivity. The study revealed that different aspects of sleep are related but can also be separable domains influencing biopsychosocial factors.
A study of 27,500 people found that poor sleep leads to brains appearing older than their actual age. Low-grade inflammation is estimated to explain around 10% of the link between poor sleep and older brain age.
A study found that longer commutes and smaller living spaces are associated with poor sleep health among Tokyo residents. Housing choices that balance location and size may help improve sleep health, according to researchers at Osaka Metropolitan University.
The Associated Professional Sleep Societies (APSS) is accepting research abstracts and session proposals for the 40th annual SLEEP meeting. Abstracts will be accepted until Dec 8, 2025, for oral and poster presentations on sleep and circadian science.
A new study found that healthy habits such as optimism, good sleep, and social support are strongly linked to healthier brains. Study participants who reported the most protective factors had brains eight years younger than their chronological age, and their brains aged more slowly over time.
Researchers from Washington State University suggest a link between bacterial peptidoglycan and the regulation of sleep in mice. The study found that peptidoglycan is present in different locations within the brain and changes with time of day and sleep deprivation.
A new national study found nearly one in four older adults who started off in poor health and lower well-being can fully recover within three years. Strong psychological and emotional wellness, maintaining a healthy body weight, regular physical activity, and social engagement were key factors associated with recovery.
A new study by Universidad Miguel Hernandez de Elche researchers reveals that brain slow waves are guided by neuronal excitability, not anatomy. The discovery uses advanced computational models to analyze local and global brain activity, shedding light on states like deep sleep and anesthesia.
Research by Mass General Brigham reveals association between witnessing neighborhood violence and insufficient sleep in adolescents, leading to increased violent behaviors such as carrying a weapon. The study analyzed data from over 40,000 teenagers, finding strong links between sleep loss and exposure to violence.
A University of Otago study found that most young people don't follow current sleep guidelines, with only a quarter exercising before bed. The research suggests that these recommendations may not be practical or effective in improving sleep.
A new study published in Autism found that autistic children are more likely to experience ongoing gastrointestinal problems than their typically developing peers. These symptoms can affect sleep, communication, sensory processing and behavior, and often don't have an identified medical cause.
Dr. Matthew Walker brings a multi-disciplinary approach to sleep research, focusing on the impact of sleep on human health and disease, and developing new tools and technologies to measure and improve sleep quality. The Sleep Innovation Laboratories will serve as a vital hub for discovery, innovation and public education.
A study by Stanford Medicine researchers finds that permanent standard time would be healthier than seasonal shifting, with benefits including reduced cases of stroke and obesity. Permanent daylight saving time would achieve about two-thirds of the same effect.
A prospective study of the Adolescent Brain Cognitive Development cohort found that modifiable parental factors, such as screen use and emotional regulation, are associated with specific adolescent sleep outcomes. Parental warmth is also linked to sleep chronotype, highlighting potential targets for evidence-based interventions.
A study published in the journal Sleep analysed data from over 26,000 days and nights to find that bedroom temperature and daytime light are associated with objectively measured sleep. People living with dementia have disrupted sleep patterns when bedrooms are hotter or lighting is dimmer.
A new study reveals the complex brain circuits involved in growth hormone release during sleep. The findings provide a map for understanding how sleep and hormone regulation interact, potentially leading to new treatments for sleep disorders and degenerative diseases.
A study by University of Otago researchers found that young adults who prioritize good sleep, eat more fruit and vegetables, and stay physically active experience improved well-being. These basic lifestyle behaviours can meaningfully enhance well-being without costly interventions.
Researchers have deciphered the fly brain's process of filtering out visual information during sleep, creating a 'window' that allows strong stimuli to wake them up. This study may hold parallels for human brain function and could reveal a universal principle of sleep.
Researchers at Mass General Brigham identified seven metabolites in the blood associated with excessive daytime sleepiness (EDS), a condition linked to increased risk of cardiovascular disease, obesity, and diabetes. The study also found that dietary changes or supplements may help reduce EDS risk.
The American Academy of Sleep Medicine is hosting Sleep Medicine Disruptors 2025, a biennial event exploring technology innovation and artificial intelligence in sleep health. The event will feature keynote address by Dr. Robert Pearl and award entries for innovative products and services supporting sleep health.
A small randomized controlled trial found that blowing through a conch shell for six months reduced symptoms of obstructive sleep apnea, including daytime sleepiness and breathing interruptions. The study suggests that conch blowing may be a simple, low-cost alternative to traditional treatments like CPAP.
Researchers are exploring whether wearable devices can detect early signs of cardiovascular disease through physical activity, sleep and blood pressure data. The study aims to develop a machine-learning model that uses data from wearable sensors to predict cardiovascular risk.
Researchers found that chronic disturbance of a mother cockroach's sleep harms baby development by prolonging gestation and interfering with milk production. This study uses the Pacific beetle-mimic cockroach as an animal model to explore connections between pregnancy and sleep in humans.
Research suggests that sleeping on a difficult task can improve performance by strengthening and consolidating memories in the brain. A new study found that rhythmic brain activity during sleep in areas active during training correlates with improved task performance after waking.
A new UT Arlington study explores how sleep deprivation affects police performance and suggests tailored sleep interventions may help. Officers reported getting seven hours or less of sleep per night due to shift work, job pressure, and emotional fatigue.
Researchers used mathematical modelling to explain why babies nap on some days but not others, and how older people wake up earlier. The study showed that the 2PM model reflects brain activity as people switch between sleep and wakefulness, offering new insights into sleep patterns and potential solutions.
A study from the UJI reveals how the brain interprets social hierarchies and emotional facial expressions through the anterior temporal lobe. The upper part of this region is strongly activated when individuals make decisions based on emotional facial expressions, particularly in those with high levels of anxiety.
A new study found that older adults with insomnia face triple the risk of developing depressive symptoms compared to sound sleepers. The study suggests that treatments targeted at inflammation-related depression may benefit these patients and improve their overall quality of life.
A new study found that verbal reaction time can detect sleepiness in older adults, a common safety risk. Voice analysis method reliably detected when someone was speaking versus silent with high accuracy.
A new Swedish twin study found that genetics largely determine an infant's crying duration, with 50% of variation explained by genes at 2 months and 70% by 5 months. Environmental factors also play a role in infants' ability to settle during the first months of life.
A new study explores the role of sleep in elite male cyclists during the Tour de France, finding that riders pushing hardest tend to sleep less and report lower quality sleep. Despite this, most riders still manage to get more than 8 hours of sleep per night.
A new study from Mass General Brigham researchers found that an average of 21% of teen drivers engage in distracted driving, with many believing their peers drive distracted due to social norms. The study suggests encouraging strategies like 'Do Not Disturb' mode and ensuring teens get adequate sleep can mitigate this behavior.
A recent study published in PLOS Biology found that taking a nap with deeper sleep can lead to increased 'aha' moments, with 70.6% of participants experiencing insight after a 20-minute rest period.
The study found that sleep schedules differ between weekdays and weekends, with most people catching up on lost sleep over the weekend. Seasonal changes also play a bigger role than expected, with people sleeping more in winter and less during summer months. Irregular sleep can be linked to adverse health risks.
A research team analyzed YouTube videos of sleeping cats to find that two thirds sleep on their left side. This bias is thought to be an evolutionary strategy, favoring the use of the right hemisphere of the brain for spatial awareness and threat processing after waking.
This study found that increased screen time in late childhood was associated with more depressive symptoms, likely due to shorter sleep duration. Poor white matter organization during early adolescence may also contribute to this link.
Researchers at the University of Michigan propose a new theory that non-REM sleep strengthens memories, while REM prunes overlapping ones. This sequence helps reinforce relevant memories and keeps unrelated ones distinct.
A Waseda University research team developed a method to measure thermal insulation of bedding systems, considering individual body parts. The study found that relying solely on whole-body insulation is not enough and revealed the importance of optimizing sleep environments for better quality.