In his new book 'Waterlogged,' Dr. Tim Noakes (of 'Lore of Running' fame) discusses the "dehydration myth" propagated by the sports drink industry: That athletes should hydrate to the point of never feeling thirsty, because thirst itself is supposedly a sign of dehydration. The dehydration myth, Noakes writes, created a culture of overhydration, which can cause exercise-associated hyponatremia (EAH), a potentially fatal condition caused by excessive water consumption and electrolyte loss. While Noakes suggests that "drinking to thirst" is always adequate, hydration expert Doug Casa says the principle is really only good for low-intensity, recreational exercise. For more competitive athletes, Casa says "if you're only drinking to thirst, you aren't being proactive according to what your needs are." This means starting off hydrated and drinking small and steady amounts throughout the physical activity.
Credit: Lothar Schulz / Getty Images
Powered By ZergNet
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.
Gear of the Year
103 Must-Have Gadgets, Tools & Toys
Plus: The Plan to Save Africa's Rhinos
ON NEWSSTANDS NOW