Science
Your heart can get out of rhythm. Dr. Gregory Marcus explores why the heart may beat too slowly or too fast, or in a disorganized or chaotic manner. Some of these different types of arrhythmias can be dangerous if not properly treated, while others may be annoying but are not life-threatening. Find out how to tell the difference. Series: "Mini Medical School for the Public" [Health and Medicine] [Show ID: 34162]