"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Let’s take a mental trip back to seventh-grade health class. When you got to the unit on menstruation, ...

Editor's Note: We at PS recognize that people of many genders and identities have menstrual cycles. This particular story includes language from experts who generally refer to people with menstrual ...

Let’s take a mental trip back to seventh-grade health class. When you got to the unit on menstruation, you probably learned that people with uteruses typically get their periods once a month or so—but ...