Junior Heart Docs Welcome to Live...from the Heart! Today, you begin your training with a cardiologist at Advocate Christ Medical Center. As a Junior Heart Doc, you will learn about the amazing muscle called the heart. You will discover how the heart works, why it is important and what happens if you don't take care of it. You will also try your hand at an activity that highlights the risk factors for heart disease and make recommendations to your patient, Bill Harvey, about what he can do to treat his damaged heart. © 2007 Museum of Science and Industry, Chicago. All rights reserved.