"Twelve-year-old Eli D'Angelo has a genetic disorder that obliterates social inhibitions, making him irrepressibly friendly, indiscriminately trusting, and unconditionally loving toward everyone he meets. It also makes him enormously vulnerable. This remarkable story follows Eli's coming-of-age while his mother, Gayle, must decide whether to shield Eli entirely from the world or give him the freedom to find his own way. In a vivid and sympathetic telling based on three years of immersive reporting, Jennifer Latson intertwines Eli and Gayle's story with a look at the genetic basis of behavior, revealing how insights drawn from this rare condition shine a light on what makes us all human."-- Book jacket.