How to Keep Blood Osmolality at the Right Levels

The body has to very carefully keep that concentration of osmolites in the right range. And if it gets off, it will take drastic measures to get it right again. The authors identify another major reason that the body has to keep fluid volume and osmolality at the right levels is blood pressure. They say your body uses blood to transport oxygen and other essential nutrients to all of its tissues. If the volume of water in the body drops below ideal levels, blood volume actually decreases. There's not enough blood, which means the circulatory system has to work harder and harder to keep blood pressure up.