Articles tagged with Sleep
A recent study published in Metabolism found that our internal clock independently affects the energy we burn after eating, peaking in the morning and decreasing at night. This discovery sheds light on why late eating may contribute to weight gain or struggles with weight loss.
A Bar-Ilan University study finds that artificial light spilling into coastal waters disrupts sleep in coral reef fish, causing increased aggression and DNA damage. Chronic exposure may have lasting biological consequences.
Researchers at the University of Groningen found that a clinically approved asthma drug can restore access to social memories disrupted by sleep deprivation. In a study, mice who were sleep deprived after meeting other mice couldn't recognize them later, but the drug roflumilast allowed them to recall their social encounters.
A study of 90 Japanese esports players found 43.3% had poor subjective sleep quality, with later bedtimes and shorter sleep times common among pros. Early-morning gaming was linked to poor sleep quality, highlighting the need for sleep support tailored to competitive status.
A new study found that pregnant women's expectations about postpartum sleep predicted their actual sleep quality after delivery, with 70% of women anticipating poor sleep. The study suggests that addressing sleep-related beliefs during pregnancy and treating postpartum anxiety may improve sleep and emotional well-being in new mothers.
A new study found that individuals with a 'Sleep Appreciate' profile are willing to pay more for better sleep, while those with a 'Sleep Devalue' profile require less money. The research suggests integrating economic perspectives into sleep health research may offer novel insights for designing interventions.
College students who take more daily steps tend to have better sleep quality and reduced mental health issues. The study, published in Behavioral Sleep Medicine and Chronobiology International, found that excessive sedentary behavior can lead to negative mental health outcomes.
A new EPI-SLEEP study will investigate the impact of personalized in-ear sleep technology on sleep disturbances and circadian health in adults with epilepsy. The study aims to generate robust evidence for a low-risk approach to improving sleep without adding medication burden.
A cohort study found that smartphone acquisition at age 13 was linked to increased risk of insufficient sleep at age 14. Excessive smartphone use was also tied to higher odds of depression and obesity. Limiting screen time may protect adolescents from these outcomes.
By inducing rhythmic on-and-off activity in small portions of the brain, researchers triggered a recalibration of neural connections that normally only occurs during sleep. This approach offset the effects of sleep deprivation and revealed features of sleep key to its restorative effect, including improved tactile memory tasks.
A new study reveals that adolescents who use their smartphones more before bed have more late-night smartphone usage. The research found that teenagers with greater pre-bedtime smartphone use had greater late-night use, with an average of 46 minutes of late-night use per night.
A new University of Arizona study has found that several common sleep behaviors may be linked to signs of brain aging. Sleeping outside the recommended seven-to-nine-hour range, frequent daytime napping, and sleeplessness were distinctly associated with greater volume of white matter lesions in healthy people.
A recent study found that shorter sleep duration is associated with increased perinatal anxiety and obsessive beliefs. Mothers who experience disturbed sleep tend to have higher levels of anxiety, particularly those with lower coping ability. The study suggests prioritizing mom's sleep may benefit her mental health.
A new study found that irregular sleep patterns, including variability in timing and duration, are associated with lower receptive vocabulary and visuospatial memory scores in preschool-age children. Despite accounting for total sleep time, greater variability in sleep midpoint was linked to lower verbal performance.
A recent study in mice reveals a shared hub of memory cells that links incoming and outgoing signals, allowing the brain to reuse some cells to store many different memories. This 'switchboard' helps maintain stability while learning new information.
A new study found that middle-aged women who experienced poor sleep problems had lower psychological well-being nine years later. The association remained significant even after adjusting for other health and lifestyle factors, suggesting that sleep may play an outsized role in how women feel and function later in life.
A new study found that adults feeling older than their chronological age experience more insomnia symptoms, less regular sleep, and greater daytime sleep-related impairment. The mismatch between subjective age and actual age is associated with poorer self-reported physical health.
A new study finds that individuals with later sleep schedules report poorer mental health, higher general loneliness, and greater nocturnal loneliness. Nighttime loneliness is a key pathway connecting later sleep patterns to anxiety.
Research using EEG reveals that caffeine can reduce slow-wave activity and shift brain patterns towards wakefulness, even if sleep duration appears normal. This can lead to a vicious cycle of fatigue and poorer sleep quality, highlighting the need for personalized approaches to caffeine consumption.
A new study maps how 29 factors influence one another in young adults aged 18-40, revealing self-reinforcing loops that worsen depressive symptoms and disrupt sleep. The model highlights the complexity of these interactions and suggests a nuanced approach to breaking the cycles.
A new study from UC San Diego found that poorer sleep quality is associated with greater memory difficulties and more Alzheimer's-related brain changes in older women with a higher genetic risk. The study suggests that improving sleep could become a target for future Alzheimer's prevention strategies.
Researchers found significant loss of neurons in the locus coeruleus, a second critical region involved in arousal and muscle tone regulation. This finding suggests an immune-mediated process and challenges the prevailing explanation for narcolepsy with cataplexy.
Research suggests that high-intensity exercise is most effective in reducing sleep disturbances among older adults with mild cognitive impairment. Light activity also shows some benefits, while moderate exercise has little impact. Tailored exercise programs could help prolong quality of life for this growing demographic.
Researchers found four mental states: recollections, connection to environment, bizarreness, and voluntary control, which appear across all three vigilance stages. A specific brain signature for the 'bizarre' dream-like state was also identified, characterized by reduced long-range connectivity between brain regions.
Dr. Indra Narang, a pediatric respirologist and sleep medicine specialist, has received the 2026 Inclusive Leadership Award for her work to broaden access and representation in sleep medicine. Her research focuses on improving diagnosis and treatment of childhood obstructive sleep apnea with an emphasis on equity-driven innovation.
A new study by researchers at IMT School for Advanced Studies Lucca analyzed over 3,700 reports of dream and waking experiences to understand what determines the content of dreams. The findings show that both individual characteristics and shared life experiences play a key role in shaping dream content.
A new study from Center for BrainHealth researchers found that declining slow-wave activity during sleep explains why anxiety rises in older adults. Participants who generated fewer slow waves woke up more anxious the next morning, while those with stronger slow-wave sleep did not show the same pattern.
Research explores how differences in brain development, age, and sleep affect EEG signals recorded from awake individuals. The study reveals that brain signals during wakefulness depend on prior sleep, with effects differing between children and adults.
A randomized clinical trial found symptom-based dosing decreases discharge time compared to scheduled opioid taper approaches among infants with opioid withdrawal. This approach, using Eat, Sleep, Console, led to faster recovery and improved outcomes.
The study examines the cumulative physical, cognitive and psychological demands of a Formula 1 season on team personnel. Researchers aim to develop targeted interventions to support performance, recovery and well-being in one of the world's most demanding team environments.
A new trial found that proximal hypoglossal nerve stimulation (pHGNS) significantly reduced breathing interruptions during sleep and improved daytime sleepiness without adverse events. The therapy, an FDA-approved alternative to nasal positive airway pressure, was found to be safe and effective in patients with moderate-to-severe obstr...
A study of 1,338 older adults found that longer, more frequent, and morning naps were associated with higher mortality rates. Excessive daytime napping was linked to increased risk of neurodegeneration, cardiovascular diseases, and greater morbidity.
A meta-analysis of millions of community-dwelling adults found that regular physical activity, less sedentary time, and appropriate nightly sleep (7-8 hours) were associated with a lower subsequent risk of dementia. Conversely, too little or too much sleep was linked to an increased risk, highlighting the importance of optimal sleep du...
A new study found that male, married Canadians with social support, healthy habits, and excellent health are more likely to experience high levels of emotional, psychological, and social well-being. Social support was a key factor associated with flourishing mental health among older adults.
A national Canadian study found that older adults who are socially connected, physically healthy, and spiritually engaged are significantly more likely to experience complete mental health. Social support emerged as one of the strongest predictors, doubling the odds of achieving complete mental health.
Research from Flinders University finds that people with sleep apnea who experience dramatic night-to-night breathing problems are 30% more likely to have a heart attack or stroke. The studies suggest that repeated changes in oxygen levels and sleep disruption can quietly stress the heart and blood vessels over time.
A study of 3,959 healthy Japanese workers found that longer working hours, including unpaid care and domestic work, are associated with a higher risk of nonrestorative sleep and poor mental health in women. The researchers call for policy changes to address time poverty and promote gender equality.
Scientists have developed a method to track increased movement of brain fluids during sleep without invasive procedures. This allows for the study of how sleep enhances brain cleaning processes.
A new study from the University of Oulu suggests that large swings in bedtime could double the risk of serious cardiac events. Inconsistent bedtimes were strongly associated with a higher risk of major cardiovascular events, especially among those who get less than eight hours of sleep.
A study found that late sleep schedules are linked to unhealthy eating habits, including increased calorie intake and snacking, as well as reduced physical activity, particularly during school hours. The researchers suggest that parents should pay attention to their children's sleep timing during adolescence.
The American Academy of Sleep Medicine has announced the 2026 award recipients for their exceptional contributions to sleep medicine. The award winners are Dr. Susan Redline, Danny Eckert, Dr. Douglas Kirsch, Dr. Beth Malow, and Dr. Robert Stansbury, recognized for their research, education, advocacy, and clinical care.
Researchers found that immersive dreaming, even with wake-like brain activity, leads to a greater feeling of deep sleep. Vivid dreams are associated with subjective deeper sleep, while abstract thoughts are related to more shallow feelings.
Research suggests living in areas with high levels of transportation noise is associated with a significantly higher risk of major adverse cardiac events. Loud road, aviation, and rail noises were linked to increased risks of heart attack, stroke, or coronary revascularization. Different types of noise may come with unique health risks...
The study identified six sleep health dimensions in young adolescents: irregularity, timing, duration, social jetlag, weekend oversleep, and continuity. Greater irregularity was associated with higher concurrent transdiagnostic mental health symptoms, while shorter duration was linked to increased symptoms at follow-up.
Adolescents who replaced half an hour of sedentary behaviors with moderate-to-vigorous physical activity or sleep showed a 15% lower insulin resistance. This study highlights the importance of being active early in life for long-term health, aligning with the American Heart Association's Life's Essential 8 metrics.
A study found that sleep apps can have negative effects on people with insomnia symptoms, causing more worries and stress. While the apps helped some users, younger adults reported stronger effects, while older individuals responded less.
A study published in JAMA Network Open found that analyzing fine-scale patterns in brain waves during sleep can provide insights into brain health. The research suggests that sudden large spikes on EEG, known as kurtosis, are associated with a lower risk of dementia.
Researchers found that adults with ADHD exhibit more sleep-like brain activity, leading to more lapses in attention. This increased activity may be a key brain mechanism underlying attention problems in ADHD. Further study is needed to explore potential strategies to mitigate this activity.
A study by researchers at the University of Basel and University of Bern found that spring fatigue is not a real biological phenomenon, but rather a culturally influenced concept. Participants in an online survey reported feeling more exhausted in spring, but the data showed no correlation with seasonal changes.
The research team created a fiber memristor-based physical reservoir computing system that enables seamless, continuous, and unobtrusive sleep monitoring. The system achieved 94.8% accuracy in snore event detection, 95.4% in sleep stage classification, and 93.5% in multi-modal fusion tasks.
A large observational study found that sleeping 7 hours and 18 minutes per night may help prevent insulin resistance and type 2 diabetes. However, weekend catch-up sleep can increase the risk of impaired glucose metabolism in those who sleep beyond this threshold every night.
A team from Hackensack Meridian Health found that during the deepest sleep, breathing patterns become independent of brain activity, unlike lighter sleep or wakefulness. This study provides new insights into how internal brain states interact with peripheral rhythms like respiration.
A systematic review and meta-analysis found a small correlation between daily screen use and later sleep onset in youth. However, short-term fluctuations in screen time had limited effects on sleep duration, efficiency, or quality.
A study found insufficient sleep among US adolescents, with trends suggesting environmental and structural factors are driving the issue, rather than specific behaviors. The findings highlight the need for population-level interventions to address widespread sleep loss.
Chronic sleep disruption persistently impairs social memory by differentially encoding oxytocin release in hippocampal CA2 during novelty encoding and prelimbic cortex during retrieval of familiar individuals. Restoration of PVN-OXT neurons enhances OXT release and produces sustained behavioral recovery.
A new study from the University of East Anglia found that babies with an increased likelihood of autism may struggle to settle into deep, restorative sleep. Those with high sensory sensitivity slept more lightly even in quiet environments.
A new multicenter study by Kumamoto University and National Cerebral and Cardiovascular Center found that working-age adults with shorter sleep durations are more likely to develop atrial fibrillation. In contrast, retirees showed no significant association between sleep duration and AF risk.
Research by Amita Sehgal and her team reveals that sleep helps neurons stay healthy by removing oxidative damage through lipid transfer to glia cells. This process is crucial for maintaining neuronal function and may contribute to the development of neurodegenerative diseases like Alzheimer's.