Since a century ago, when summer Olympic Games were last held in Paris before this year’s games, summer days with hot  temperatures are now three times more frequent in the city. That jump in temperatures is enough to put significant physical stress on athletes, especially those competing in endurance events. Ariane Middel, an associate professor in the School of Computing and Augmented Intelligence, a part of the Fulton Schools and director of the SHaDE Lab, talks about ways to reduce the debilitating impacts of physical exertion in hotter climates. She is co-author of a detailed study on heat stress and its impact on runners. (Middel is mistakenly identified in the article as a faculty member at the University of Arizona.)