hi tracy: my wife used to be a medic in the military, I found some info on leg cramps in her medical handbooks , there could be three main causes for them (1) arteriosclerosis (impaired circulation in the legs) (2) imbalance of the bodies electrolytes (3) and more rarely early stages of amyotrophic lateral sclerosis or als. tracy I hope it is number two that one is very easy to correct.