Sudden cardiac deaths are rare among elite athletes. Yet these abrupt events are confounding, in part, because they strike some of our most physically dynamic individuals, and because there remains a lengthy list of potential causes. How are we advancing our grasp of the underlying triggers of these life-threatening arrhythmias? Host Dr. Doug Weaver talks with Dr. Doug Zipes, distinguished professor emeritus of medicine at the Indiana University School of Medicine, about the balance of uncovering at-risk patients, while maintaining reasonable restrictions on their athletic activities, and avoiding unnecessary tests for those who are not in danger.