By French guy, we mean Professor Jean-Denis Rouillon, from the University of Besançon in eastern France, and the we're comprises 18-to 35-year-olds (sorry, maman!). According to TheLocal.fr, "Using a slide rule and caliper, Rouillon spent years" — fifteen of them, in fact — "carefully measuring changes in the orientation of breasts belonging to hundreds of women" and he found that the nipples on the freeboobing bunch "lifted on average seven millimetres in one year in relation to the shoulders." Ergo, your bra might be making your breasts sag.
Of her braless existence, one of the study's participants remarked, "I breathe more easily, I carry myself better, and I have less back pain." But Rouillon believes his work is far from done, since apparently nothing was proven per se: "We will simply have to recruit a larger sample of the female population, and conduct further research." What about the male population, bro?