In general, women sweat less than men under similar exercise conditions. Part of the reason is that because of their lower weight and body type, they have a larger ratio of body surface to body mass making it easier to dissipate heat, and as such don’t need to sweat as much. Women also have lower total body water content than men of comparable size, making it important to look at various factors involved in dehydration and rehydration. As such, women need to be more aware of listening to their thirst signals because they tend to dehydrate more quickly.