You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Adult torticollis, also known as cervical dystonia or “wryneck,” is a condition where your neck muscles go into spasm and pull your head to one side. Torticollis is often painful and can provoke ...

Q: A few months back I started to have a tightness in my neck, mostly on the right. I tried to ignore it, but then my head began to bend toward my right shoulder. Sometimes I cannot straighten it. As ...

Muscle knots are highly irritated muscle fibers that have tightened into a ball in one area of your muscle. These painful, tender spots can feel sore and often occur in your upper back, shoulders, or ...

Infectious agents can cause muscle twitching and spasms, too. The most commonly known is probably tetanus, which causes a phenomenon called lockjaw, where the neck and jaw muscles contract to the ...