Dr. Sanjay Gupta - CNN

Sanjay returns to the show to discuss his new book, "Keep Sharp" with eye-opening insights on how to keep your brain young, healthy, and sharp from top scientists all over the world whose cutting-edge research can help you heighten and protect brain function and maintain cognitive health at any age. Sanjay debunks common myths about aging and cognitive decline, explores whether there’s a “best” diet or exercise regimen for the brain, and explains whether it’s healthier to play video games that test memory and processing speed, or to engage in more social interaction.  Great info for people at any age.