LAUSR

Rapid eye movement (REM) sleep behavior disorder (RBD) is defined as a parasomnia involving disruptive and violent dream-enacting behaviors associated with the loss of normal muscle atonia during REM sleep. RBD has been described predominantly in elderly men and usually emerges after the age of 50 years. A majority of patients with RBD will eventually develop neurodegenerative diseases around a decade from RBD onset [1]. Recently, early-onset RBD (≤ 50 years) has been reported to have different clinical features compared with lateonset (> 50 years) RBD. Here, we report on an early-onset case of aggressive parasomnia and sleepwalking with major adverse health and psychosocial consequences that was eventually diagnosed as RBD.