Dr Robert Califf conducts a series of in-depth and personal interviews with his peers in the world of cardiology to find out what makes them tick, how they feel about the future, and what lessons they have learned during their exceptional careers.

In Episode Five of the series, Dr Califf talks to Dr Carl Pepine about his passion for research and his concerns about the encroachment of bureaucracy and hasty reform that cloud over a career choice that is less enticing to today's brightest students than when he was starting out in medicine.