Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors. The causes of involuntary movements can be chronic conditions, nerve damage, drug ...

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 ...

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 ...

Learn about breath-holding spells in children—their causes, symptoms, diagnosis, treatment options, and prevention tips for ...