Yes blind peole have REM sleep!!
During REM sleep, people seldom dream.
They have more REM
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the deep, dreaming part of sleep known as rapid eye movement (REM) sleep. Normally when people fall asleep, they experience 90 minutes of non-REM sleep, which is then followed by REM sleep. People with narcolepsy, however, enter REM sleep immediately
REM sleep is amazing sleep!
In sleep apnea people enter REM sleep just fine. The problem is that when the muscles relax in the first part of REM sleep the airway collapses and they stop breathing. This interrupts the sleep cycle and they get poor sleep amongst other problems. Not entering REM sleep causes what is known as "REM sleep behavior disorder". They do not have the normal paralysis that accompanies the dream stages of REM sleep so they may act out dreams. Sleepwalking is one example. For more information see the link below.
REM rebound involves the tendency for REM sleep to increase following REM sleep deprivation.
Yes, people who have severe sleeping disorders, like narcolepsy, never reach rem sleep. If you drink large amounts of alcohol before bed, it also prevents you from getting rem sleep.
REM (Rapid Eye Movement) sleep is active sleep.
rem sleep
Yes, it is possible to move during REM (rapid eye movement) sleep. While most muscles are generally paralyzed during REM sleep to prevent acting out dreams, some people may experience a condition called REM sleep behavior disorder (RBD) where this paralysis is incomplete, leading to movements or even violent behaviors during REM sleep.
Truly "deep" sleep does not occur during REM sleep. REM sleep is when you are dreaming. It is deeper than light sleep, but not as far down in unconsciousness as "deep" sleep.