Nix Hydration Biosensor Review: Unlocking the Science of Sweat

In a world where unmanned spacecraft have landed on Mars and artificial intelligence can read your mind, one would think someone would have figured out a precise way to measure how much athletes should drink while exercising. Hydrating, or replacing body fluids lost through sweating, exhaling, and eliminating waste, is essential. When 2 or more percent of body mass is lost through dehydration, the body can go haywire, with elevated cardiovascular strain, reduced aerobic exercise performance, and impaired thermoregulatory function. After losing 12 percent of body mass to dehydration, a human will die. It's rare for an athlete to exercise to the point of death by dehydration.