" primary methods of succeeding in hot conditions: (1) Acclimatize; train the body to handle heat. (2) Increase fluid intake, since sweat evaporation is the primary means of cooling; if the body cannot sweat, it loses its ability to cool itself. (3) Get fit; the fitter you are, the more efficient the body’s cooling system. "

― Deena Kastor , Let Your Mind Run: A Memoir of Thinking My Way to Victory