REM sleep

Rapid Eye Movement (REM) sleep is a unique sleep stage characterized by quick, automatic movements of the eyes, vivid dreaming, and increased brain activity. During REM sleep, your muscles are relaxed and almost paralyzed, which prevents acting out dreams. This stage typically occurs multiple times during a night and is essential for cognitive functions like memory, learning, and emotional regulation. REM sleep usually happens after periods of deep sleep, and its duration increases as the night progresses. Overall, REM sleep plays a vital role in maintaining mental and emotional health.