Terry Gross

Evan Osnos talks about Joe Biden's enduring quest to become president. He says Biden has a different mindset today than he once had: "He's a man who is at peace." Originally broadcast Oct. 27, 2020.

In the 1960s and '70s, Johnson, who died Jan. 11, played on recordings by Charles Mingus, McCoy Tyner and Carla Bley. He also led his own ensembles, including Gravity. Originally broadcast in 1984.

Daniel Lieberman is a professor in the department of human evolutionary biology at Harvard. He says that the notion of "getting exercise" — movement just for movement's sake — is a relatively new phenomenon in human history. His new book is Exercised: Why Something We Never Evolved to Do Is Healthy and Rewarding.