>>19 They don't have to. I thought this was common sense.
Exercise can affect your height, as noted in the "Sports Medicine" research study, but only because in most cases it STUNTS it when you exercise too much.
The way it can help you grow taller is if you exercise healthily, and provide the stress that is necessary for shaping your musculoskeletal system. People also say that stretching helps.
http://www.livestrong.com/article/295067-what-makes-people-grow-taller/
Also, it's fucked logic to tell someone to supply evidence when you don't yourself- mentioning what you "believe in" isn't evidence either.
/sage