Mary Roach is a New York Times bestselling author and acclaimed science writer who once thought science was boring. She has traveled the world and written fascinating, humorous books about the human body and its curiosities. Today she discusses three of them with Sarah: "Stiff," "Six Feet Over," and her latest, "Replaceable You." They also talk about how our culture got so squeamish about dead bodies, and where we might go after we die.

Learn more about Mary Roach and her wonderful books at https://www.maryroach.net/

For more information and to become an organ donor, please visit https://www.organdonor.gov/