In this episode we are joined by Haley Shapley, the author of Strong Like Her: A Celebration of Rule Breakers, History Makers, and Unstoppable Athletes to learn about our "Muscular Foremothers" such as Kathrine Switzer. We discuss the advancements for women in the 1970s as well as gender polarization and body expectations. Many female athletes are honored and highlighted in Ms. Shapley's book, and she discusses her interviews with them.