Sex differences in heat loss during exercise in warm, tolerable conditions stem from body size rather than gender, reveals recent research. Taller, larger individuals sweat more effectively, while smaller people—regardless of sex—rely more on increased skin blood flow for cooling.
The body regulates temperature through sweating and enhanced surface circulation. Those with greater surface area per body mass depend less on sweat and more on vasodilation. These findings upend the traditional view that men and women always respond differently to heat stress.
