According to Hollywood legend, Marilyn Monroe slept in a bra to keep her assets firm and perky. A new study from France suggests it might have been more effective for her to go without. Researchers spent fifteen years studying the breasts of 330 French women, and concluded that wearing a bra does not prevent sagging or ease back pain. Professor Jean-Denis Rouillon said, “Medically, physiologically, anatomically – breasts gain no benefit from being denied gravity. On the contrary, they get saggier with a bra.” Taking measurements with a caliper, the researchers found that by not wearing a bra, muscles around the breast actually strengthened and the nipple raised 7mm per year toward the shoulder.
However, the scientists did not recommend all women ditch their bras since their muscles had probably already degraded.