Transcript for Saggy Breasts, Back Pain: Is Your Bra to Blame?
Reporter: They're the fashion staple that katy, madonna and lots and lots of angels support. For most women, bras are a second skin but now new research claims women's breasts may get saggier when they wear bras. An age-old coverage crisis? Perhaps. Initial findings in a french study suggests that bras may limit the growth of supporting breast tissues that keep breasts perky. Over 15 years, the research team followed 330 women and found those who took off their bras for good experienced firmer, perkier breaths each year they didn't wear a bra. So does this mean women don't need these anymore? Self-proclaimed national bra expert linda becker isn't unhooking. What makes you think that the research is poppy cook? Gravity pulls everything down. There's no way that you can walk around day after day and not wear a bra and have your breasts real up and perky. Reporter: Linda who owns a chain of bra stores and a national online bra state size most women would be in bad shape physically and socially without adequate bosom support. And this is your biggest seller online. You can't tell me a woman who wears this bra would better not wearing it. I would say no because, you know, it would be sitting on her lap. Reporter: But dr. Stafford brumont says there could be some legitimacy to the french findings. In younger women it seems like it would work to increase the ee lasty and therefore decreasing the sagging of a developing breast. Reporter: Women of all sizes, shapes and ages says even if the french research gains more support they're not burring their bras any time soon. I think people might fall in love with me too much if i didn't wear a bra. Girls need support. Girls need to be perked up.
This transcript has been automatically generated and may not be 100% accurate.