Chorea and hemiballismus are both forms of involuntary movement disorders. Hemiballismus can cause sudden, violent, and flinging motions. Chorea can cause irregular, spontaneous, and nonrepetitive ...

Researchers report that, like MI, strokes can be triggered by particular events. A new study shows that triggers associated with the greatest risk of ischemic stroke were sudden body movement in ...

Ringing doorbells and other things that startle people appear to be powerful and surprisingly common triggers of strokes, according to a study presented Saturday.Israeli researchers found that ...

The Parkinson’s Foundation says “sudden movements during sleep” may be a sign of Parkinson's disease. It notes: “It is normal for everyone to have a night when they 'toss and turn' instead ...