Drink Water Responsibly When Exercising to Avoid Health Risks.
Experts say that keeping hydrated during exercise is important, but drinking too much water can be hazardous and in some case, can even result in death. Newly published guidelines recommend that drinking when thirsty is the healthiest way for athletes to keep hydrated, reducing the risk of exercise-associated hyponatremia (EAH). Excess water intake can lead to EAH, whereby the kidneys are unable to excrete the excess water in the body completely. As a result, the sodium in the body becomes diluted, causing dangerous swelling in cells.
Clinical Journal of Sport Medicine, July 2015