REM/ NREM sleep (Rapid eye movement)

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5 Terms

1
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REM sleep

Stage of sleep characterized by rapid eye movements and brain activity similar to that of being awake.

2
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NREM sleep

Stage of sleep accounting for approximately 75-80% of total adults' sleep time.

3
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Stage N1

Stage of drowsiness with very light sleep, where the person can be awakened and shows slow eye movements.

4
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Stage N2

Stage of light sleep where heart rate and breathing slow down.

5
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Stage N3-4

Deepest and most restorative stages of sleep characterized by high-amplitude delta waves and physical recovery.