REM behavior disorder(redirected from Rapid eye movement behavior disorder)
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REM be·hav·ior dis·or·der
a disorder characterized by lack of the atonia of voluntary muscles that normally occurs in REM sleep.
REM behavior disorderSleep disorders A type of psychosis linked to a lack of REM sleep and lack of dreaming. See Sleep disorder.
REM behavior disorder, rapid eye movement sleep disorder,
A relatively rare sleep disorder in which people act out their dreams during REM sleep, a phase of sleep during which most people are normally paralyzed. It is found most often in men over the age of 60. Sudden and potentially dangerous limb movements, grunting vocalizations, and disruption of the normal continuity of sleep are common findings.