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.

Or perhaps it’s a muscle in your arm, your leg, or your foot that begins to spasm – sometimes for a few seconds, sometimes ...

Infectious agents can cause muscle twitching and spasms, too. The most commonly known is probably tetanus, which causes a phenomenon called lockjaw, where the neck and jaw muscles contract to the ...

Add Yahoo as a preferred source to see more of our stories on Google. Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary ...

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Occasional leg cramps are considered common and usually harmless, especially after physical exertion, dehydration, or prolonged sitting or standing.

If you've ever developed a tortuous calf spasm during a neighborhood run or suddenly woken up at 3 a.m. with a toe-curling charley horse, you know that muscle cramps are one of life's most hellish ...

Sometimes you can laugh about it later. Most of us have experienced it, from simple discomfort to shriek-evoking intensity. I'm talking about a muscle spasm. I've seen grown men who could stoically ...

Céline Dion insisted that graphic footage of herself having a violent muscle spasm should stay in a new documentary about her life, the film’s director has said. Upon being shown the footage, “the ...