REM Sleep Behavior Disorder: Causes, Symptoms & Treatment

REM sleep behavior disorder (RBD) is a sleep disorder in which complex movements occur during the dream phase. The sufferer reacts to certain dream content by acting aggressively. RBD is often the precursor of Parkinson’s disease, Lewy body dementia, or MSA (multisystem atrophy). What is REM sleep behavior disorder? REM sleep behavior disorder is a … REM Sleep Behavior Disorder: Causes, Symptoms & Treatment