Hallucinogens like DMT, psilocin, and LSD might rewrite the rules of sleep, blurring the line between dreams and reality.

REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Disrupted SWS (critical for waste clearance) and REM sleep (key for memory) may impair the glymphatic system, hindering the removal of Alzheimer’s-linked beta-amyloid plaques. The study suggests sleep ...

Research reveals how specific sleep stages protect brain vulnerable to Alzheimer's, offering hope through simple lifestyle ...

If you're on the fence about the best sleep masks, know that there are two types of sleepers in this world: Those who can ...

A study published in the Journal of Clinical Sleep Medicine explores the association between sleep architecture and brain atrophy in regions vulnerable to | Neuroscience ...

Researchers from the Yale School of Medicine found that individuals who spend less time in slow-wave and rapid eye movement (REM) sleep had smaller volumes in brain regions linked to Alzheimer's. This ...

A good night's rest isn't just about waking up refreshed — it plays a critical part in preserving your mental sharpness as you age. The role of sleep quality ...

A study on birds finds that when jackdaws are sleep-deprived, they stop sleeping with one eye open and enter deeper sleep, risking safety.