Do you know what's really good for you? We've become a nation of cyberchondriacs, diagnosing ourselves with false information and half-truths found on sketchy websites. Now Dr. Nancy Snyderman, chief medical editor for NBC News, provides clear, practical, scientifically proven advice that can lead you to a healthier, happier, life. Discover the simple, everyday things that affect well-being, and possibly even save a life -- yours.