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.

Certain lifestyle choices and habits may reduce the risk or delay its onset by protecting brain health and reducing oxidative stress. Read on to find out.

Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...

Sleep quality matters more than quantity. Learn why you might still feel tired despite getting eight hours of sleep and how ...

Delayed REM Sleep Could Be an Early Sign of Alzheimer's Jan. 27, 2025 — Scientists have recently shown that both the quality and the amount of sleep we get may influence our risk of developing ...

HTP is a popular supplement that can increase levels of the hormone serotonin in the brain. But very little evidence supports ...

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 ...

Apr. 9, 2025 — A collaborative study found that while sleep duration recovers quickly, sleep timing and sleep architecture can take significantly longer to realign when traveling across time ..