The sleep cycle has three NREM stages and one REM stage. Deep sleep occurs in stage 3 and is crucial for feeling refreshed. REM sleep helps in processing and storing memories. As we sleep, our brain ...
A sleep cycle is a physiological process that allows the brain and body to repair tissues, remove toxins, and process memories. It typically lasts 90 to 110 minutes and is repeated 4 to 6 times per ...
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