When doing intense physical exercise, men begin to sweat earlier than women. What’s more, after the same amount of time on a stationary bike, men perspire almost twice as much as women in control areas of the skin (forehead, chest, back, forearms and thighs).
These are the experimental findings of a team of Japanese scientists at Osaka International University and the University of Kobe. Previous studies have indicated that testosterone may affect perspiration patterns. However, the Japanese scientists think that evolution may provide the answer: women avoid perspiration as a strategy to avoid dehydration in hot environments, whereas men’s sweating is a strategy to quickly achieve a better physical performance.