Dr. Jen Gunter is known as the internet’s resident gynecologist for good reason. Famed for taking down those who peddle misinformation and pseudoscience, Dr. Gunter is applying her signature feminist lens to menstruation in her new book, Blood. She joins Piya Chattopadhyay to break down reproductive anatomy, and why our longstanding period of menstrual shame should be replaced with science and evidenced-based research.