70 Facts about Menstruation

You know your period? That friend that shows up every month, whether you want it to or not, and stays for about a week. It may eat you out of house and home, or occasionally make you want to curl up and die, but it isn’t unfamiliar. From the first telltale cramp to that final uncomfortable tampon, you know your period inside-out.

Or do you? Unsurprisingly, periods are complicated business, scientifically and historically speaking. This Application brings some AMAZING MENSTRUATION FACTS.