Many sexually active people actually know very little about sexually transmitted diseases, in part because they’re awkward to talk about. Dr. Ina Park is a medical consultant at the Centers for Disease Control and Prevention, Division of STD Prevention, and she joins host Krys Boyd for an open conversation about how STDs are spread and how they affect the body. Her new book is “Strange Bedfellows: Adventures in the Science, History, and Surprising Secrets of STDS.”