A type of cholesterol you've probably never heard of may be linked to the third leading cause of heart disease in the country…Dr. Stephen Kopecky of the Mayo Clinic agreed. He said that when it comes to preventing heart disease, tried-and-true advice still applies. "Too often, Americans may be looking for a quick fix that will allow us to trade in our bodies for new ones after 55 years or so," he said.

ABC News by Steven Driver

Tags: ABC News, Cardiology, cholesterol, Dr. Stephen Kopecky, Genomics, heart disease