- (B) People  deprived    of  REM sleep   have    difficulty  with    memory  tasks.  REM sleep   deprivation
 does not increase stage 3 and 4 sleep (in fact, people deprived of REM sleep more easily slip into
 sleep onset and REM sleep, not deeper sleep stages like stage 3 and 4). REM deprivation is not
 related to sleep apnea, night terrors, or manifest dream content.
                    
                      marvins-underground-k-12
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