James L. Marcum, board-certified cardiologist practicing with Chattanooga Heart Institute, has been named by USA Today as one of the most influential physicians in his field. He is the author of The Ultimate Prescription as well as an in-demand speaker for his role as the director of Heartwise Ministries. Currently, his radio program, Heartwise, airs on more than 500 radio stations across the nation. Dr. Marcum, speaker/director of HeartWise Ministries, hosts the health programs "Heart of Health" and "BibleRX" which can be seen on secular and Christian television. He is married to Sonya and has two children, Kelli and Jake. He enjoys music and outdoor activities.