All Episodes

December 18, 2018 31 mins
Does our genetic code matter more than our environments? Join CNN's Chief Medical Correspondent Dr. Sanjay Gupta as he wrestles with the age-old nature-nurture debate. First, Sanjay brushes up on genetics 101 with Dr. Ruth Tennen. Then, he discusses what studying twins can teach us about nature and nurture with twin expert and psychologist Dr. Nancy Segal. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices
Mark as Played

Advertise With Us

Popular Podcasts

Cold Case Files: Miami

Cold Case Files: Miami

Joyce Sapp, 76; Bryan Herrera, 16; and Laurance Webb, 32—three Miami residents whose lives were stolen in brutal, unsolved homicides.  Cold Case Files: Miami follows award‑winning radio host and City of Miami Police reserve officer  Enrique Santos as he partners with the department’s Cold Case Homicide Unit, determined family members, and the advocates who spend their lives fighting for justice for the victims who can no longer fight for themselves.

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

Stuff You Should Know

Stuff You Should Know

If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2025 iHeartMedia, Inc.