Dystonia is a common and disabling movement disorder in humans. It encompasses a variety of different symptoms including torticollis, limb and trunk dystonia, writer's cramp, blepharospasm and ...

Robert F. Kennedy Jr. has spasmodic dysphonia, a voice disorder caused by a malfunction in the brain. Here’s what to know.

Dystonia is a neurological (brain and spine-related) movement disorder that causes your muscles to contract involuntarily, resulting in uncontrolled and repetitive body movements. This condition ...