Health·Posted on Jun 23, 2016This Might Be The Hardest Period Quiz EverAre you a period prodigy?by Caroline Kee BuzzFeed StaffLinkFacebookPinterestTwitterMail Watch us give the quiz to men here!: View this video on YouTube BuzzFeedYellow / Via youtube.com Information sourced in part by: * Dr. Mary-Jane Minkin, M.D., FACOG * The Mayo Clinic* National Institutes of Health (NIH) Public Library of Medicine * Indian Journal of Endocrinology and Metabolism * The UK National Health Service (NHS) 21 Things You Never Knew About Your Period buzzfeed.com