A muscle spasm — also known as a charley horse, muscle cramp or twitch — is a sudden, involuntary movement in one or more muscles. Common causes include stress, exercise, or dehydration, but nerve ...

The Washington Nationals are in the early stages of what could be a season-defining stretch. Unfortunately for them, they'll have to navigate the immediate future without another one of their best ...

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

CONCORD, N.C. — Sprint Cup points leader Jeff Gordon cut short his practice because of back spasms and the No. 24 team has Regan Smith on standby should the four-time champion not be able to run the ...

Abdominal spasms — which some people refer to as stomach spasms or twitching — occur when muscles in the stomach or intestines contract. These spasms can range in intensity and duration. Stomach ...