One key to a long life, is healthy friendships. Meaningful friendships are one of the common factors in the world’s Blue Zones, where people often live to 100 or older. Indeed, our friendships become more important than our family relationships as we age so it’s important to invest wisely. But how exactly? Dr. Marisa G. Franco, author of Platonic: How The Science of Attachment Can Help You Make—and Keep—Friends, has some ideas.
