1/3 of your daily energy expenditure is used to power what is called the "sodium potassium pump". Why so much energy you say? Well this pump is literally in every cell in your body and is used in fluid transfer and transfer of electrically charge ions throughout the body. This pump will pump sodium and potassium from higher concentrations to lower concentrations. This pump is needed for life and it will also end your life if you consume too much sodium and live and unhealthy lifestyle. Hypertension is a totally preventable disease that kills millions. Educated yourselves.