What is REM sleep?
ANSWER
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.
Babies can spend up to 50% of their sleep in the REM stage, compared to only about 20% for adults.
From: What Are REM and Non-REM Sleep? WebMD Medical Reference
Reviewed by Sabrina Felson on October 26, 2018
SOURCES:
National Institutes of Health.
National Sleep Foundation.
SOURCES:
National Institutes of Health.
National Sleep Foundation.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
This tool does not provide medical advice. See additional information.