“Drink your milk,” we are told as children. CNN Chief Medical Correspondent Dr. Sanjay Gupta examines our practice of continuing to drinking cow’s milk as we grow up. Plus, how to get the best sleep if you work the night shift.  Producer & Medical Writer: Andrea Kane Showrunner: Amanda Sealy Senior Producer: Dan Bloom Technical Director: Dan Dzula Executive Producer: Steve Lickteig Learn more about your ad choices. Visit podcastchoices.com/adchoices