Magnesium is definitely a part of the conversation. It helps neurofunction and muscle signaling, along with cell metabolism. It helps quite a few processes in the body. I wish I remembered more of the processes specifically so I could be more accurate! Most electrolytes have some very important roles, including calcium far beyond building strong bones. One of many reasons I take multivitamins! Difficult to be too low on most anything that way. ... and it supplements my poor diet choices...