Bonus / Behind The Scenes

Sanjay dives into the fraught history of domestic adoption in the United States. First, he'll speak with adoption historian Dr. E. Wayne Carp to get some context and hear about the role that secrecy has played in American adoption practices. Then, writer Rene Denfeld shares her h ...  Show more

Can twins feel each other's pain? Do they share a special bond? Sanjay will attempt to answer these questions by speaking with twin astronauts Mark and Scott Kelly, the research subjects of a fascinating NASA experiment about their own twin relationship. He will also get a more s ...  Show more

A new person of interest emerges 

To mark the 500th episode, Daniel gives a tour of the podcast's history and production process, including candid interviews with the co-hosts, Sean Carroll and other podcasters.See omnystudio.com/listener for privacy information. 

A study of Josh Hawley and Marjorie Taylor Greene. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices 

Celebrities. Betrayal. Hotness? All that and more on todays episode. Learn more about your ad choices. Visit megaphone.fm/adchoices