It’s 4 PM. Your coffee is cold, your posture is tragic, and your laptop screen is blurring into a singular, glowing nemesis.

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

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

Neurological causes of lip twitching: Don't dismiss lip twitching when it's rhythmic and appears at rest. In some people, this subtle facial movement could be the nervous system’s quiet way of ...

Lip twitching happens when your upper or bottom lip shakes, trembles, or quivers uncontrollably. It may be caused by something as simple as drinking too much caffeine or being low in potassium, but, ...