Many people will deal with a sleeping problem at some point in their life.
There are over 80 types of sleep disorders. Some sleep disorders happen during or are worse during one or more stages of sleep. Knowing about the stages of sleep can help you understand what healthy sleep looks like.
There are 3 stages of NREM sleep:
REM sleep is also called the dream stage. It helps your brain in important ways. During REM sleep:
For most people, REM sleep happens every 90 minutes throughout the night.
You may or may not remember dreaming during REM stages, but everyone dreams.
You move through all of these stages several times during sleep. The stages don’t always happen in the same order or for the same amount of time. It’s important to get enough sleep so that all of the different stages of sleep can work together to keep you healthy.
Current as of: September 21, 2021
Author: Respiratory Health Section, Medicine SCN (Strategic Clinical Network, Alberta Health Services)
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