Eileen Crimmins discusses the mortality difference between the sexes and its possible causes.

Interview with 2016 Kavli Prize Winners Kip Thorne and Rai Weiss

Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us.