Long workdays. Missed meals. Poor sleep. Most people blame these when legs cramp at night or eyelids twitch during meetings.

It only takes one ill-timed leg twitch to jerk you right from the precipice of a deep slumber. Sometimes it's only a little ...

Whenever I get severely anxious, there's a small muscle beneath my throat that twitches consistently for at least a few days, until it goes away on its own. Before I went to my doctor about it, though ...