Which gender typically has a higher body water percentage?

Men typically have a higher body water percentage compared to women. This is largely due to differences in body composition; men generally have a greater proportion of lean muscle mass, which contains more water, while women tend to have a higher percentage of body fat, which contains less water. The average body water percentage for men is about 60-65%, whereas for women, it is approximately 50-60%.

In terms of the other groups, children have a higher body water percentage than adults, often surpassing 70%, because of their higher muscle mass relative to fat and their larger surface area to volume ratio, which means they can lose water more quickly. The elderly tend to have a lower body water percentage due to a decrease in muscle mass and an increase in body fat, leading to a reduction in total body water. Thus, men are the group that typically holds the highest percentage overall, making them the correct answer to this question.