REM (Rapid Eye Movement)

Jonathan KimJin Kwon

Jason Park

What is REM???

• REM is a normal stages of sleep by rapid movements of eyes

• Sleep in adult humans typically occupies 20~25% of the whole sleeping time, about 90~120 minutes

• People go into 4~5 periods of REM sleep• Most people tend to wake up, or go into a light

sleep• Most babies go into REM 80% of the whole sleep• If people can recall their dreams vividly, then they

have gone through REM.

What is REM??? Cont.

• In dreaming, our eyes move the same amount as we do when we are awake.

• When we are not dreaming, our eyes stay still…

• Muscles are paralyzed in this stages.• REM occur every 90 minutes• The brain has increased blood flow and

uses more oxygen during REM sleep. • characterized by faster breathing and

heart rate than other stages of sleep.

Why do we have REM?

• REM serves to rest the whole body, including the brain

• Saves memory (Good and Bad) and gets rid of excessive memory

• The smarter you are, the more REM you have.

• Depressed people go to REM faster and stay in the stages longer