Basics of Cardiology: What is an ECG?

You probably have had an ECG or electrocardiogram. But why? What can this simple test tell you? Can you learn about your heart on a simple piece of paper? This week on Heart Doc VIP you'll learn the history of recording electricity in the heart from 100 years ago to now, wanders through Ann Arbor, Michigan, and ends up with you understanding how your heart work.