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 ...

"I was really hoping that I'd be good to go by now," Céline Dion wrote as she canceled the remainder of the North American leg of her Courage World Tour on Saturday Glenn Garner is a form ...

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