you've experienced a muscle spasm, also referred to as a charley horse. These spasms, often felt in areas like the neck, legs ...

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 ...

This article explains how tight neck, shoulder and upper back muscles ... by forcing these muscles to knot up. This results in muscle spasms. But despite these spasms, some tearing does occur ...

Heat therapy makes your blood vessels dilate, allowing more blood, oxygen and nutrients to be delivered to the inflamed or stiff muscles.