What is REM sleep behaviour disorder, and how is REM a risk factor for Parkinson’s disease?
REM sleep ( rapid eye movements ) is one of the phases of human sleep characterised by loss of body muscle tone and the presence of rapid eye movements (REM). Intermittent persistence of muscle tone during REM sleep is the basis of REM Sleep Behavior Disorder (SRSD). In the periods in which muscle tone (REM sleep without atonia), the subject can express the movement perceived in the dream scenes. "SRCT is clinically characterised by the presence of abnormal violent dreams and complex, vigorous, problematic or violent behaviour". This disorder usually concludes, frequently, with the result of injuries. It is usually...