How much does your boyfriend know about periods?

More than half the population have periods, but what do the other half know about them?

Men know surprisingly little about something women go through every month with their periods. Yes, men are aware that periods exist - and many joke about - but what do they really know? Do they know how tampons work? How sanitary pads work? How moon cups work? The answer is probably somewhere between "sort of" and "no". We tested this man's knowledge about menstruation and gave him some education as well.