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How Much Nrem Sleep Should I Have?
Polysomnography is a sleep study. A sleep study monitors you as you sleep, or try to sleep.
There are two states of sleep:
- Rapid eye movement (REM) sleep
- Non-rapid eye movement (NREM) sleep
REM sleep is associated with dreaming. Your body muscles (except your eyes and lungs) do not move during this stage of sleep.
NREM sleep has four stages that can be detected by brain electrical activity (
REM sleep alternates with NREM sleep approximately every 90 minutes. A person with normal...
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