Hemifacial spasms happen when a blood vessel puts excess pressure on a facial nerve, per the National Institute of Neurological Disorders and Stroke (NINDS). They can also be caused by external nerve ...

You know that tiny eye twitch that shows up right when your inbox explodes or after your third cup of coffee? We’ve all been there. Most of the time, it’s your body’s way of saying, ‘slow down’. But ...

If you're experiencing involuntary sensations that cause your eyelid to blink or spasm, you could have a common phenomenon known as eyelid twitching. The science behind this isn't clear-cut, but it's ...