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A member asked:
What stages are there in sleep?
A doctor has provided 1 answer
Nrem and rem: there are 2 main stages of sleep non rem and rem. Non rem (nrem) is sub divided into n1 - stage 1 , n2- stage 2, and n3- stage 3. Stage 3 is what is considered slow wave sleep. Stage 4 is now classified in with stage 3 sleep.
Answered 12/7/2015
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