You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...

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.

MICKLETON, N.J. (WPVI) -- Nearly everyone gets a muscle cramp from time to time. When muscle contractions won't stop and can't be controlled, that's called dystonia. A South Jersey man is now sharing ...

Hot and humid climates are particularly conducive to muscle cramps. Studies suggest that athletes, like Sinner, who compete in such conditions are at a higher risk due to the increased sweat loss and ...

Muscle cramps are sudden, involuntary contractions that can cause sharp, intense pain lasting from a few seconds to several minutes. They often strike during exercise, dehydration, or even while ...

Hiccups are an involuntary contraction of the diaphragm muscle, followed by a sudden closure of the vocal cords, which produces the characteristic hic sound ...

Tardive dyskinesia and dystonia are both neurological disorders that can affect your muscles and cause involuntary muscle contractions. Tardive dyskinesia, which is usually a side effect of some ...

When we think of movement disorders, the tremors associated with Parkinson’s disease are probably what first spring to mind. However, there are other equally debilitating and much less well-known ...

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 ...