REM sleep is a stage of sleep where the brain is active, dreaming occurs, and muscles are paralyzed, essential for various functions.
During REM sleep, the brain produces rapid movements of the eyes, and this is the stage in which dreaming occurs. Muscle systems in the body are paralyzed except for those necessary for circulation and respiration, resulting in a lack of movement of voluntary muscles. REM sleep is characterized by high brain activity and is crucial for learning, memory, mood, and overall health.
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