Add Yahoo as a preferred source to see more of our stories on Google. A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle.

Add Yahoo as a preferred source to see more of our stories on Google. Q: My cousin was diagnosed with dystonia, what is this? A: Dystonia is a disorder of involuntary muscle contractions that may ...

While leg cramps are often benign and temporary, in some cases, they can indicate underlying health issues that require ...

Medically reviewed by Nicholas R. Metrus, MD Tardive dyskinesia and dystonia are movement disorders with different causes and ...

Have you ever found yourself clutching your calf and wondering what causes leg cramps? Ouch, right? Like the check engine light or a same-day 5 p.m. calendar invite from your boss, it always seems to ...

Researchers at Mass Eye and Ear have developed a unique diagnostic tool that can detect dystonia from MRI scans, the first technology of its kind to provide an objective diagnosis of the disorder.

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 ...