REM is the sleep cycle stage when dreaming occurs. Rapid eye movement "dream sleep" occurs cyclically about every 90 minutes in between the other "dreamless" stages of non-REM (NREM) sleep. Source: ...

What happens in the brain and body during NREM and REM sleep As you sleep, your brain cycles through four stages of sleep. The first three are considered non-rapid eye movement (NREM) sleep, also ...

Your brain cycles through several stages during sleep, and REM sleep might be the most critical. This mysterious phase, where ...

The characteristic eye movements that give rapid eye movement (REM) sleep its name represent gaze shifts in the dream world of sleeping mice, according to a new study. The findings reveal an ...

Share on Pinterest What explains rapid eye movements during sleep? Researchers may be getting closer to an answer. Image credit: Alexandr Ivanets/Stocksy. When animals change their head direction as ...

A research team has revealed the link between the frequency of sleep apnea events during the rapid-eye-movement stage and the severity of verbal memory impairment in older adults at risk for Alzheimer ...

What triggers the mammalian sleep cycle's shift between non-rapid eye movement (NREM) and rapid eye movement (REM) sleep? A new study in mice suggests increased levels of dopamine in a key region of ...

Any sleep tracker will show you that slumber is far from a passive affair. And no stage of sleep demonstrates that better than rapid eye movement, or REM, commonly called dream sleep. “It’s also ...

RBD is marked by loss of REM sleep atonia, leading to physical dream enactment. Polysomnography is essential to confirm RBD and rule out other disorders. Idiopathic RBD is a strong predictor of ...