I recently read that hormone and growth levels in swimmers are less than in basketball players or runners. Our swim-team workouts are much more strenuous than the workouts for these other sports. What gives?

Some researchers have found higher levels of testosterone in athletes who do impact sports (running, basketball) compared to athletes in water sports. But other studies have not confirmed this difference. Research has also failed to show a difference between these two groups of athletes in regard to growth and development.