Electrolytes are chemicals that conduct electricity when mixed with water. They regulate nerve and muscle function, hydrate the body, balance blood acidity and pressure, and help rebuild damaged tissue. The muscles and neurons are sometimes referred to as the “electric tissues” of the body. They rely on the movement of electrolytes through the fluid inside, outside, or between cells. The electrolytes in human bodies include sodium, potassium, calcium, bicarbonate, magnesium, chloride, phosphate. For example, muscle needs calcium, sodium, and potassium to contract. When these substances become imbalanced, it can lead to either muscle weakness or excessive contraction. The heart, muscle, and nerve cells use electrolytes to carry electrical impulses to other cells.