Sanjay Gupta, MD, on Health, Happiness Around the Globe; Medication Mistakes; Health Benefits of Martial Arts

Summary: What can other cultures teach us about living a longer, healthier, happier life? CNN's Sanjay Gupta, MD, tells us what he learned from traveling the world. Plus, how to avoid common mistakes when taking medicines. Then, WebMD Chief Medical Officer John Whyte, MD, MPH, talks to actor Michael Jai White about the health benefits of martial arts.