Juliene Gonçalves Costa, João Carlos Locatelli, Kristanti Wanito Wigati, J. Criddle, Xingwei Xu, Julie Collis, Louise H. Naylor, Andrew Haynes, Shane K. Maloney, Howard H. Carter, Robert A. McLaughlin, Helen Jones, Keith George, Daniel J. Green
In military, workplace, and sporting settings, challenging environmental conditions while performing external workloads are not always avoidable. We assessed sex differences during a 90-min treadmill walk (40°C). Males produced more metabolic heat, had higher skin blood flow, sweat rate, and cardiac output than females. Change in core temperature remained similar between sexes, challenging the proposition that women are more heat-intolerant than men. Our findings underscore the need for tailored heat tolerance strategies for both sexes.