A leg cramp is a sudden, uncontrolled contraction of a muscle ... (also crossing the knee and hip). A leg cramp may also be referred to as a "charley horse." Leg cramps usually last less than ...

Hemifacial spasm (HFS) is a neurological disorder manifested by twitching on one side of the face due to involuntary contractions of the eyelid and other facial muscles. It usually begins gradually ...