Why you get leg cramps after sports?

Actually, no one knows exactly why someone gets cramps, commonly known as Charlie Horses, but the prevailing theories seem to point to sudden loss of electrolytes, or at least an imbalance in them, in your system. Some people get these during the athletic event, some after and some at night. \ Eating bananas for the potassium and drinking drinks with high amounts of electrolytes seem to help some people. Also for those getting them at night, stretching before going to bed seems to help.