Dear Eric: I am a young adult with a movement disorder similar to Parkinson’s. It causes uncontrollable, violent, jerky, muscle movements, called dyskinesias, in nearly every part of my body. These ...

DEAR ERIC: I am a young adult with a movement disorder similar to Parkinson’s. It causes uncontrollable, violent, jerky, muscle movements, called dyskinesias, in nearly every part of my body. These ...

Researchers have conclusively identified the genetic cause of a rare, progressive movement disorder. A rare extra-long version of a gene appears to cause nerve cells to become poisoned by toxic ...

Stereotypic movement disorder is a motor disorder that develops in childhood, typically before grade school, and involves repetitive, purposeless movement. Examples of stereotypic movements include ...