A French scientist (of course) has done a study that shows that women probably shouldn't wear bras. Well, okay, just young women:

His preliminary results on 330 women aged 18 to 35 suggested that wearing a bra from an early age does nothing to help a wearer's breasts and going without could improve firmness.

"The suspension system of the breasts degenerates," Rouillon said, explaining that bras also unnaturally hamper circulation.

"But a middle-aged women, overweight, with 2.4 children? I'm not at all sure she'd benefit from abandoning bras," he added.