answer:It’s because Adam ate off the tree in the Garden of Eden silly. Or possibly if you want to take the new-fangled sciency approach… It’s actually called prominentia laryngea. It is composed of cartilage which surrounds the larynx. As the larynx grows during puberty, the cartilage enlarges to accommodate it, creating a bump. As to why us manly men have it and women don’t is simply because the male larynx is larger in men than in women. Simple. Isn’t science crazy, go with the Adam/Garden of Eden theory. Much more believable. Look mom, I used some big words just then