Women who wear bras have saggier breasts than women who don’t, according to a new study.

Scientists in France found that bras give no benefit at all in “denying breasts gravity” and claim the underwear is just a “false necessity."

The research suggests wearing a bra could actually be sending our busts southwards and does little to ease back pain.

Professor Jean-Denis Rouillon, from the University of Besancon, led the 15-year study into women’s breasts.

“Medically, physiologically, anatomically – breasts gain no benefit from being denied gravity," he said. “On the contrary, they get saggier with a bra”.

Rouillon spent years using a slide rule and caliper to measure changes in the orientation of the breasts of 130 women.

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