H2O is key to keeping our bodies in balance. Even just a 1% change in the amount of water in our bodies can negatively impact our health. How H2O supports your body Water plays a vital role in the physical processes inside our bodies. It’s what regulates our bodies and promotes good physical function. Staying hydrated helps to: Improve circulation, which delivers much-needed nutrients to our cells. Boost muscle function for maximum athletic results. Regulate blood pressure, whi...