How to exercise safely in the heat

How to exercise safely in the heat Enlarge this image toggle caption RyanJLane/Getty Images RyanJLane/Getty Images Treadmill fatigue is real. "It takes blood and energy to your gut to digest the food and that makes more body heat — not what you want when you're already hot," she explains. "Wear sweat-wicking athletic clothing that allows your skin to perspire and cool," he says, "and avoid materials like cotton that basically keep the heat close to your body." "If the water is cool, swimming is a great choice on hot days and a good way to manage heat in general, because your body is stressed from heat even if you're not exercising." "It's perfectly fine to back off a bit when you're trying to exercise in that heat," she says, "and particularly important if you have heart disease, diabetes, or any chronic disease.