Today we're talking to Dr. Daniel Lieberman, Professor of Human Evolutionary Biology at Harvard University and Chair of Harvard’s Department of Human Evolutionary Biology. Dr. Lieberman is also the author of numerous books, most recently one titled “Exercised: Why Something We Never Evolved to Do Is Healthy and Rewarding.” Dr. Lieberman took time out of his busy teaching and research schedule to join us on the BarBend Podcast. We discuss why humans evolved for a very different lifestyle than we live today, and why exercise has become something many people dread while others embrace it in various forms. We also discuss which exercise modalities come most naturally to humans, and how we as a society can promote healthier living through better incentive and support structures.