Lisa Hendrickson-Jack talks about vaginas a lot! She’s a certified Fertility Awareness Educator and Holistic Reproductive Health Practitioner who teaches women to chart their menstrual cycles for natural birth control, conception, and monitoring overall health. In her book The Fifth Vital Sign, Lisa debunks the myth that regular ovulation is only important when you want children, by recognizing the menstrual cycle as a vital sign. Drawing heavily from the current scientific literature, Lisa presents an evidence-based approach to fertility awareness and menstrual cycle optimization. She hosts the Fertility Friday Podcast, a weekly radio show devoted to helping women connect to their fifth vital sign by uncovering the connection between menstrual cycle health, fertility, and overall health. With well over 2 million downloads, Fertility Friday is the #1 source for information about fertility awareness, and menstrual cycle health, connecting women around the world with their cycles and their fertility — something our education systems have consistently failed to do. When she’s not researching, writing, and interviewing health professionals, you’ll find her spending time with her husband and her two sons. To learn more, visit fertilityfriday.com.