2021. 2. 27. · It lifts the breasts and tries to prevent sagging considerably. While the problem is not completely inevitable, a bra does try to curb this problem as much as possible, uplifting the breasts. 3. Gives Better Shape. A lot of women are insecure about their breasts, whether it’s the shape, color, size, or gap. When you take it all off, your boobs are free to do whatever they wish — swing, bounce, jiggle, and, most importantly, breathe. It's so freeing to feel the soft texture of your favorite comfy tee. 2019. 1. 15. · To back it up, scientists studied why women don’t need bras. According to this study, the undergarment doesn’t have any medical or anatomic benefits for women. The research showed that they do the exact opposite of what marketing tactics say they’ll do. Instead of offering support, they cause breasts to sag and prevent them from growing.