The happiest and healthiest people are those who have an abundance of warm connections with others, says psychiatrist Robert Waldinger, who leads the Harvard Study of Adult Development -- one of the longest-running studies of adult life ever conducted. Exploring the link between social bonds and quality of life, he shares insights into how to identify and strengthen the relationships that impact your well-being most. (This conversation, hosted by TED current affairs curator Whitney Pennington Rodgers, was part of an exclusive TED Membership event. Visit ted.com/membership to become a TED Member.) After the talk, Shoshana shares a surprising perspective shift that may boost your happiness.