" runners throughout the first half of the twentieth century generally avoided drinking anything during long races because they believed that submitting to their thirst would cause them to become “waterlogged” and slow down. One expert of the time wrote, “Don’t get in the habit of drinking and eating in a Marathon race; some prominent runners do, but it is not beneficial. "

― Matt Fitzgerald , The New Rules of Marathon and Half-Marathon Nutrition: A Cutting-Edge Plan to Fuel Your Body Beyond "the Wall"