Heart disease remains the most common cause of death in the United States, and yet it is largely preventable. CNN Chief Medical Correspondent Dr. Sanjay Gupta shares his own family history of heart disease and talks with cardiologist Dr. Clyde Yancy about what we can do to keep our hearts healthy, even if our genes make us more disposed to heart issues. And cardiologist Dr. Haider Warraich tells the story of one woman who fought against gender bias to change the way the medical community treats heart attacks.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy