Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.

The name skull crushers isn’t too enticing—I get it—but it's a great triceps-toning move, and not as scary as it sounds. While it might be a little more advanced than other dumbbell exercises ...

Involuntary head twitching may range from neck spasms to uncontrolled tremors. Causes may include several movement disorders, such as Tourette syndrome and Parkinson’s disease. Involuntary head ...

Dan Baumgardt does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

The hamstring muscles are responsible for your hip and knee movements in walking, squatting, bending your knees, and tilting your pelvis. Hamstring muscle injuries are the most common sports injury.

What Is the Trapezius Muscle? Trapezius muscles are large, paired, triangular muscles in the back of your neck and upper back. They extend down your back, but they’re mostly involved in the movements ...