Sleep disorders may lead to structural brain changes, cognitive decline, and neurological disease. Here’s what science says about the risk.

It’s bedtime, but your legs feel like they need to move as soon as you lie down. Sound familiar? You may have restless legs ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." (Leah Abucayan, ...

Well, just like with acting out our dreams, it's actually impossible to sneeze during sleep — at least in certain stages of ...

Narcolepsy disrupts more than sleep—it affects daily life. Learn about causes, symptoms, diagnosis, and the latest treatment ...

Stress worsens sleep quality and can impair memory. Shinjae Chung, from the University of Pennsylvania, led a study to ...

Sleep paralysis, a common yet frightening experience, affects about 20% of people, causing temporary immobility and vivid ...

Following deep sleep, REM sleep is the next critical phase of sleep cycles, characterized by more dreaming that's also extra ...

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Sleep also enables the body to repair and replenish cellular material that is damaged or depleted. Important bodily functions ...