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.

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 ...

Singer Celine Dion’s announcement Thursday that she has stiff-person syndrome will shed new light on a rare treatable, but incurable, condition. According to Dr. Duarte Machado of the Chase Family ...

Botox is known for fixing wrinkles, but for a local woman, it ensures her eyesight. Annie Giacalone, of Wilmington, has essential blepharospasm, a long name for the movement disorder that causes ...