Sleep

A new study reveals that exposure to morning sunlight is linked to improved sleep quality later that night, while the total time spent in sunlight has little effect.

A recent study found that individuals who had near-death experiences reported more frequent and vivid dreams, including lucid dreams, out-of-body experiences, and precognitive dreams, compared to those who hadn’t come close to death, suggesting altered consciousness influences dreaming.

A study found that adolescents exposed to more parental conflict experienced lower sleep efficiency and more wake episodes in emerging adulthood, linking family stress during adolescence to long-term sleep problems. The findings highlight lasting impacts of parental conflict on sleep.

Researchers discovered a brain mechanism during sleep, called BARR, that silences neurons in the hippocampus to reset memory pathways. This process prevents overload, allowing the brain to store new information without exhausting neural resources.

A study reveals that political party affiliation influences sleep quality, with Republicans in Arizona sleeping better than Democrats and Independents, especially during the COVID-19 pandemic.

A study on parabolic flights found that while participants reported better sleep after experiencing brief weightlessness, objective data showed their sleep was actually more fragmented, revealing a surprising disconnect between perception and reality.

A study reveals that more REM sleep early in the semester predicts higher test anxiety before exams, suggesting that "dream sleep" may influence how students experience stress during academically challenging periods.

Overweight teens experience greater cognitive impairments from sleep restriction compared to their healthy-weight peers, particularly in global cognition, fluid cognition, cognitive flexibility, and attention, according to new research.

A study found that older adults identifying as 'night owls' have higher cognitive scores than morning types. Normal sleep duration (7-9 hours) is linked to better cognition, while excessive sleep correlates with lower cognitive performance.

A study found that high-quality sleep during the weekend improves mental reattachment to work on Monday, reducing exhaustion throughout the workweek.

New research has found that 24 hours without sleep impairs attention and rapid information processing, causing a significant increase in errors. Sleep is crucial to restore these vital cognitive functions.

Reading on a smartphone without a blue-light filter significantly reduces melatonin levels, with adults experiencing prolonged suppression. Blue-light filters and printed books have less impact on melatonin levels.

Staying up late, even if you're a night owl, is linked to higher risks of depression and anxiety. This surprising study suggests that an earlier bedtime could improve mental health, regardless of natural sleep preferences.