Today, open-heart surgery, pacemakers and even heart transplants feel fairly routine. Dr. Sandeep Jauhar joins us to take us back to a time when pioneering physicians risked their careers – and sometimes patients’ lives – to develop these lifesaving innovations. And he’ll talk about life as a cardiologist who suffers from heart disease. His new book is called “Heart: A History” (Farrar, Straus and Giroux).