What are sleep stages?
There are four sleep stages; one for rapid eye movement (REM) sleep and three that form non-REM (NREM) sleep. These stages are determined based on an analysis of brain activity during sleep, which shows distinct patterns that characterize each stage.
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We Cycle Through Two Distinct Types Of Sleep
There are two stages of sleep:
- Rapid Eye Movement (REM): The brain activity is almost identical to when we’re awake. In this stage, we dream.
- Non Rapid Eye Movement (NREM): A dreamless sleep. During this stage, we’re calm, relaxed and the heart...
Sleep Stages
- Stage 1. Your breathing slows as well as your heartbeat, eye movement, and brain wave activity. Your muscles begin to relax.
- Stage 2. Your breathing, heartbeat, and brain wave activity continue to slow. Eye movements stop.
- Stage 3....
NREM and REM Sleep
REM, the Rapid Eye Movement stage of sleep happens when our eyes are moving fast; we are said to be dreaming in that stage.
NREM (Non-Rapid Eye Movement) is the stage of sleep when we are in deep sleep and are not moving. In this stage, our brain is able to clear toxins and con...
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