Exercising in the heat presents unique challenges for athletes.When undertaking strenuous exercise in the heat, whether that be for training or competition, athletes must take precautions to maintain their performance and personal safety.The physiological response of the body to heatWhen you exercise strenuously in even moderate heat, your body’s core temperature rises. In response, your blood flow is rerouted so more of it goes to your skin surface to help your body let off ...