A young woman covering her ears as her alarm goes off Rhythmic movement disorder is a rare motor disorder that results in frequent night sleep disturbances. Rhythmic movement disorder (RMD), a rare ...

Tic disorders are conditions featuring sudden, non-rhythmic movements or vocalizations. A formal tic disorder diagnosis is determined by tic frequency, duration, and type. Tics are non-rhythmic ...

Cranial movement disorders are a common neurological problem. These disorders can be limited to the cranial muscles alone or manifest as part of a more generalized movement disorder. Cranial movement ...