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What is REM sleep?

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Usually, REM sleep happens 90 minutes after you fall asleep. There are 3 stages, The first period of REM typically lasts 10 minutes. Each of the later 2 stages gets longer. The final one may last up to an hour. Your heart rate and breathing quickens.

You can have intense dreams during REM sleep, since your brain is more active. REM is important because it stimulates the areas of the brain that help with learning and  is associated with increased production of proteins

Babies can spend up to 50% of their sleep in the REM stage, compared to only about 20% for adults.

SOURCES:

National Institutes of Health.

National Sleep Foundation.

Reviewed by Sabrina Felson on October 16, 2020

SOURCES:

National Institutes of Health.

National Sleep Foundation.

Reviewed by Sabrina Felson on October 16, 2020

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