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 ...

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. Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary ...

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 ...

MS symptoms, such as fatigue and muscle stiffness, can fluctuate throughout the day. They can also fluctuate for days or weeks in a relapse. But how the symptoms change can vary greatly among ...

Singer Céline Dion was recently diagnosed with a rare neurological disorder called stiff-person syndrome, which has caused her to experience severe muscle spasms, the iconic performer announced Dec. 8 ...

Symptoms of MS may be mild or severe, of long duration or short, and may appear in various combinations, depending on the area of the nervous system affected. Following a relapse, complete or partial ...