At some point in your life you’ve probably had muscle cramps; when a muscle that normally only does what you tell it to do, suddenly gets a mind of its own and decides to contract, even when you tell it to calm down. They can hit during a workout or just when you move a certain way, or they may even wake you up in the middle of the night. Muscle cramps are very common, and while usually harmless, they can be extremely painful, and can signal that something else is wrong withi