By many measures, Americans have fewer friends and feel lonelier than ever before. Arthur explores the decline of intimate friendship in the U.S., the consequences of loneliness, and how we can build the kinds of friendships that we most deeply desire. Featuring conversations with Doug Nemecek, Chief Medical Officer for Behavioral Health at Cigna, Julia Bainbridge, host of The Lonely Hour podcast, and Vivek Murthy, former surgeon general of the United States.