Don’t skip drinking during exercise in hot weather, a new study reminds us.
This advice might seem obvious. But apparently some athletes, especially in team sports, have begun to eschew fluids during hot weather workouts, in hopes that the privation might somehow make them stronger.
But the new study finds that it is likely only to make them more physically stressed. And very, very thirsty.
Working out in the heat is inherently difficult, as any of us who exercise outside in summer knows. When ambient temperatures are high, we generate internal heat more quickly than if the weather is cool.
To remove this heat and maintain a safe body temperature, our hearts pump warm blood toward the skin’s surface, where heat can dissipate, and we sweat copiously, providing evaporative heat loss.