A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle. Experts weigh in on what's behind this sudden discomfort, when to be ...

The sudden, involuntary spasm seems to come out of nowhere, but in reality, hiccups are usually triggered when something irritates your diaphragm, the muscle just below your lungs that’s ...

Hemifacial spasm (HFS) is a neurological disorder manifested by twitching on one side of the face due to involuntary contractions of the eyelid and other facial muscles. It usually begins gradually ...

Current treatments for Parkinson’s disease (PD) alleviate symptoms, but lead to involuntary muscle spasms and do not prevent the loss of neurons that underlie the disease. Transplanting stem cells ...