Electrolytes are often lost during exercise through sweat.Common way to replenish your electrolytes is through high energy sports drinks. These drinks are often rich in potassium and sodium, they are designed to leave the stomach quicker delivering the electrolytes faster across the body.
Voltages are sent across our soft tissue muscles membranes helping them to contract and activate. The heart is a prime muscle that uses electrolytes to maintain its constant beat.