It is caused by a lack of magnesium, either from insufficient sources or a high level of potassium causing a tie-up in the absorbtion of the mineral.
Treatment is a couple bottles of liquid cal-mag under the skin, i.v.
Prevention is a mineral suppliment during risky times that is high in magnesium. It is caused by a lack of magnesium, either from insufficient sources or a high level of potassium causing a tie-up in the absorbtion of the mineral.