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Smologies #21: SLEEP with Chris Winter

Ologies with Alie Ward

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The Different Stages of Sleep

Sleep is divided into three stages: light sleep, deep sleep, and dream sleep. About 90 minutes after we fall asleep, if we're on a schedule and relatively well rested, we'll have dream, REM sleep. Almost half of your night is spent in N2 when your breath and your heart rate slow down. All stages of sleep that aren't REM are called non-REMsleep.

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