Hemifacial spasm (HFS) is a rare movement disorder that causes involuntary muscle contractions on one side of the face. It typically starts with painless but annoying twitching around one eye. Over ...

After undergoing six root canals over the years, Tippy McInerny wasn’t surprised when her dentist gave her several shots of a local anesthetic and stretched her mouth open for more than an hour while ...

Amanda Rush is a social person with what the Wisconsin native calls a "big personality." After college, she spent several years moving around with her then-husband, a scientist. They first moved to ...

You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or your foot that begins to spasm—sometimes for a few seconds, sometimes for ...