The pill might help women prevent knee damage as well as pregnancy.

Canadian researcher Paul Martineau of McGill University in Montreal, Quebec and colleagues found evidence for the protective effect in female athletes.

“Women are four to eight times more likely to sustain a serious knee injury than men,” says Martineau.

Research suggests that this is due to the effects of female hormones on ligament composition. “Based on these studies, we decided to look at the effect of oral contraception on knee ligaments,” says Martineau.

More here.