Q: My cousin was diagnosed with dystonia, what is this? A: Dystonia is a disorder of involuntary muscle contractions that may cause repetitive and/or abnormal movement or postures, for example ...

Chorea-acanthocytosis is a rare genetic disorder of the nervous system. It causes involuntary jerks and twitches in the muscles, known as chorea, and star-shaped red blood cells, known as ...

Athetosis and chorea are two types of involuntary movements that can occur in children and adults with neurological conditions, such as cerebral palsy. The movements have different features, and the ...

You’re fast asleep when a sudden, knife-like pain in your leg jars you out of dreamland. It’s a charley horse – sharp, relentless, and completely unexpected. But why do night cramps strike in the dead ...

Dystonia is a neurological disorder causing involuntary muscle contractions and abnormal postures. Botulinum toxin (e.g., Botox) is the gold-standard, first-line treatment for focal dystonias, which ...

Researchers uncovered new findings about involuntary muscle movements that come with long-term administration of Parkinson's drug levodopa. University of Arizona researchers have revealed new insights ...

Medically reviewed by Jennifer Steinhoff, MD Key Takeaways Muscle rigidity can happen when muscles are overused or not ...

Tardive dyskinesia shares features with other movement disorders, such as Tourette syndrome and drug-induced Parkinsonism. But a diagnostic evaluation can reveal which condition is causing the ...