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.

Learn why pickle juice is the athletes drink of choice for cramps, how it works, and whether it could also relieve menstrual cramps.

You're in the middle of your squat reps — weight in hand — and just like that, a charley horse causes your calf muscle to go rogue. When this type of muscle spasm or cramp hits, there is no mistaking ...

Most people have likely had the unpleasant experience of a muscle cramp, also known as a charley horse or muscle spasm. And while most cramps will quickly go away on their own, there are a few helpful ...

‌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 ...

Dehydration may be one cause of muscle cramps, and some evidence suggests that electrolyte imbalances also contribute to them. Muscle cramps are painful, involuntary contractions of the muscles that ...

High school fall sports teams will begin their official practices soon — including double sessions for football. While a warm August may be a wonderful time of year to swim and kayak, it may not offer ...

The involuntary contraction of muscles that occur when your knee twitches, are usually caused by the muscles in your thigh, rather than the knee itself. The occasional twitch of your knee (or any body ...