Kaveh is joined by guest co-host Rebecca Watson (Skepchick) and Dr. Jen Gunter to discuss her new book about menstruation, Blood. We learn why menstruation exists in the first place, how vaccines may affect it and whether or not Kaveh should try putting menstrual blood on his face like he saw in that TikTok. Hosted on Acast. See acast.com/privacy for more information.