The San Francisco Medical Examiner confirmed this week that a heart attack killed Mayor Ed Lee, who died on December 12 after collapsing in a Safeway store. The CDC estimates that each year about 790,000 Americans have a heart attack. We discuss how to recognize the signs and symptoms of a heart attack, how to help someone experiencing a cardiac event and the latest in prevention and treatment.
Zian Tseng, associate professor, Cardiology Division, UCSF School of Medicine
David Lee, associate professor, Stanford University Medical Center