Editor's Note: CNN Chief Medical Correspondent Dr. Sanjay Gupta originally posted this blog on June 23, 2009 to kick off his "Four Months to Fitness" initiative. [cnn-photo-caption image= http://i.cdn.turner.com/cnn/2008/images/06/20/sanjay.gupta.cnn.jpg caption="Dr. Sanjay Gupta says his upcoming birthday motivated him to launch the fitness forum with viewers. He wants himself, and America, to get in the best … Continue reading Join Dr. Gupta’s ‘Four Months to Fitness’ initiative!