Is REM sleep the best sleep stage for overall health and well-being? While all stages of sleep are essential, REM (Rapid Eye Movement) sleep plays a particularly vital role in emotional regulation, memory consolidation, and cognitive performance. This phase typically occurs in cycles throughout the night and becomes more prolonged in the later hours of sleep. During REM sleep, the brain is highly active, almost mimicking waking activity, which is why it's often associated with vivid dreaming.
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