Sport science researcher Jean-Denis Rouillon, a professor based at the University of Franche-Comte in the eastern town of Besançon, led a team that conducted a 15-year study on the effect of bras on 330 women aged 18 to 35.
http://www.cbsnews.com/news/french-study-suggests-younger-women-should-stop-wearing-bras/
I don't. Only matters if I'm gonna run. Double-bind is I only run when I'm breaking obscenity laws and going topless.
Bras with insane padding have become such a norm that nipple indents are now obscene.
The nipple discomfort is based on premise that male discomfort is more important. its just evolved that way so a lot of women adopt the discomfort too.