What makes a good life? This is the question Robert Waldinger, a psychiatrist, psychoanalyst, and professor of Harvard Medical School, has devoted his life to answering. For more than a decade, he has been the director of the Harvard Study of Adult Development, one of the longest-running studies of adult life ever done.

Dr. Waldinger has won numerous awards for teaching and research, and he is consistently named one of the Best Doctors in America. His TED talk on lessons from the longest study of happiness has had over 40 million views and is the fastest spreading talk in the history of TEDx events.