Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

Involuntary head twitching can stem from various movement disorders, including neck spasms, Tourette syndrome, and Parkinson’s disease, necessitating a doctor’s evaluation for proper diagnosis and a ...

Every once in a while, your muscles go rogue on you. Whether it’s your eyelid twitching, an involuntary shudder, or a muscle elsewhere contracting at random, twitchy muscles happen to everyone. But ...