What is the significance of the research conducted by Jean-Denis Rouillon on the effects of bra-wearing on women's breasts?

Jean-Denis Rouillon's research on the effects of bra-wearing on women's breasts is significant because it challenges the conventional belief that wearing Bras is necessary for breast health. His study suggested that not wearing a bra may lead to firmer breasts and reduce sagging over time. This research has sparked discussions about the potential benefits and drawbacks of bra-wearing for women's breast health.