People who spend less time in deep sleep or rapid eye movement (REM) sleep may be at greater risk for brain changes linked to ...

REM Sleep Behavior Disorder causes more than dream enactment—it’s a powerful clue to neurodegenerative disease risk.

Sleep also enables the body to repair and replenish cellular material that is damaged or depleted. Important bodily functions such as the production of hormones, tissue growth and muscle repair, for ...

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

As we sleep, our brain moves through four stages and two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). The brain has four stages within the NREM phase. Each stage and phase ...

When you sleep, your body takes time to: Sleep can be divided into 2 phases — non-rapid eye movement (NREM) and rapid eye movement (REM) — and 4 stages that make a complete cycle. You’ll ...

Here’s the basic gist of it. If we can use a sensor to detect REM (rapid eye movement) or body movement during sleep, we can tell if we’re dreaming — then it’s just a matter of using an ...

One in three Americans don’t get enough sleep. That can leave them at risk for negative health outcomes — so Julia Musto ...

New research found that the habit of snoozing your alarm in the morning is widespread, but experts warn that it's worse for ...

As many as 60% of patients with Parkinson's disease (PD) experience insomnia, 15-59% show rapid eye movement (REM) sleep behavior disorders (RBDs), and 30% show excessive daytime sleepiness.