RPE, Part 1: RPE ("Rate of Perceived Exertion" or "Rate of Perceived Experience") is a big subject, and in this and the next several episodes, we explore it in depth. In this episode, we discuss RPE in the areas of strength-training and cardio. Our conversation takes us into areas as diverse as Buddhism, the energetic cost of performance-enhancing drugs, and (of course) consciousness. There's a lot of material in this episode; we hope you enjoy it.