4 Stages of Sleep: NREM, REM, and the Sleep Cycle
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As your body progresses through the four stages of the sleep cycle—stages 1 through 3 (non-rapid eye movement, or NREM) and stage 4 (rapid eye ...
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- 1Physiology, Sleep Stages - StatPearls - NCBI Bookshelf
- 2Sleep Basics: REM & NREM, Sleep Stages, Good Sleep ...
As you sleep, your body cycles through non-REM and REM sleep. You usually start the sleep cycle w...
- 3How Much Deep, Light, and REM Sleep Do You Need? - Healthline
- 4Stages of Sleep: What Happens in a Sleep Cycle
There are four sleep stages3; one for rapid eye movement (REM) sleep and three that form non-REM ...
- 5What Are The Stages Of Sleep & What Does Each Stage Do?
There are five stages of sleep: wake, relaxed wakefulness, light sleep, deep sleep and REM sleep....