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Unprotected sex used to cause AIDS. Now it causes cancer.

A shortage of men motivates Russian women to become better lovers.

Are troubled lesbians more prone to prostitution? It's complicated.

Why does Norway have the smallest gap between genders? Ask a toddler.

Homosexuality, "deviance," and politics mix in Prague.

Iceland: the world's biggest penis museum

Illustration by Antler.

Sharron Lovell

GlobalPost