Answer :

Final answer:

REM sleep follows Stage 3 in a sleep cycle, characterized by rapid eye movements and dreaming. It is crucial for memory consolidation, learning, and mood regulation.


Explanation:

REM sleep follows Stage 3 of sleep in a sleep cycle. As an individual progresses through Stage 1, Stage 2, and Stage 3 of NREM sleep, they then move back to REM sleep. This transition occurs multiple times throughout the night in 90-minute intervals.

During REM sleep, the individual experiences rapid eye movements and vivid dreaming. It is a critical stage for memory consolidation, learning, mood regulation, and overall cognitive function. REM sleep plays a significant role in various functions essential for well-being.


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