Tears are the salty fluid that lubricates and helps protect the cornea, the membrane that covers the front of the eye. We’ve all heard that the body is 98% water. Tears taste salty, perspiration tastes salty, and I have read that urine tastes salty. Have you ever held a penny or aluminum foil in your mouth and noticed a slight tingle of electric current? The salts or electrolytes in our bodily fluids make the conduction of current for our control circuits more efficient, and the gradient or concentration of them across membranes provides for an action potential for events to occur. When these concentrations are out of range, our ability to maintain homeostasis is impaired.

excess electrolytes being released from the body. They release in sweat, tears, and urine.