Explores the nature of human relationships, finding that humans are "wired to connect," and bringing together the latest research in biology and neuroscience to reveal how one's daily encounters shape the brain and affect the body. "Humans have a built-in bias toward empathy, cooperation and altruism, provided we develop the social intelligence to nuture these capabilities in ourselves and others".

Wired to connect -- Broken bonds -- Nurturing nature -- Love's varieties -- Healthy connections -- Social consequence.