What makes YOU happy? Dr. Robert Waldinger is the director of the Harvard Study of Adult Development, an 83-year-old project that tracks how life experience across decades affects health and wellbeing in middle age and beyond. Robert shares the surprising things he’s learned about what makes a meaningful life and what to do --or avoid-- in order to have a long, fulfilling existence. To learn more about "How to Be a Better Human," host Chris Duffy, or find footnotes and additional resources, please visit: go.ted.com/betterhuman