DYSTROPHIA myotonica (Steinert's disease) is an uncommon disorder usually characterized by symptoms referable to the voluntary muscles of the head, neck and extremities including difficulty with ...
Involuntary movements include tremors, muscle spasms, tics, and others. Some medical conditions that affect muscles, nerves, the brain, or spinal cord can cause them, such as multiple sclerosis, ...
Sleep myoclonus is involuntary, nonrhythmic muscle twitching that occurs either as a person falls asleep or during sleep. The movements include hiccups, starts, and jerks. Sleep myoclonus is not a ...
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