text:  There are studies that have been throughout. Well, there are studies, but do you even need them? No. If you open your eyes, there's just evidence right in front of your eyes. Look, the bone structure is bigger. The bone density is stronger. The muscle mass is more. You're taller. Yeah, the wingspan. For a swimmer, the wingspan is hugely important. Men have longer arms. They have a longer leg kick. There are so many things that are built, even if they put on –