Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

MICKLETON, N.J. (WPVI) -- Nearly everyone gets a muscle cramp from time to time. When muscle contractions won't stop and can't be controlled, that's called dystonia. A South Jersey man is now sharing ...

Tremors are involuntary shaking movements in one or several parts of the body. These abnormal movements happen because of muscle contractions. Most sources do not list spinal problems as a potential ...

Just when I thought I had a real handle on panic attacks (after all, I wrote a book on the topic), something new came to my attention. A number of people have recently mentioned that, during a panic ...