Runners from around the world will gather in Baltimore for the 15th annual Baltimore Running Festival. The Marathon, the Half Marathon, the 5K race and various other events attract runners old and young; those who are in shape and a few who discover, rather quickly, that they’re out of shape. Dr. Pam Peeke joins me in the studio. She is a Clinical Assistant Professor of Medicine at the University of Maryland School of Medicine, and the author of several books, including the national best-selling book, Fight Fat After Forty, and her latest, The Hunger Fix. You can find a very simple online calculator here to determine your fitness age.