You could be fast asleep when suddenly, a sharp, paralyzing stiffness jolts you awake—usually in your calf or foot. These episodes, commonly known as foot or leg cramps, occur when a muscle tightens ...

Dehydration may be one cause of muscle cramps, and some evidence suggests that electrolyte imbalances also contribute to them. Muscle cramps are painful, involuntary contractions of the muscles that ...

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 ...