The book "Play" gives the reader an introduction to the science of play and explains why play is so important to our happiness and intelligence throughout our lives. As we grow older, playing feels like a sinful indulgence—a diversion from "real" work and life. Play, however, is anything but superficial, as Dr. Stuart Brown demonstrates. It is a biological urge that is just as essential to our health as sleep or food. In fact, our ability to play is the single most important thing that determines how successful and happy we are in life. Play is the mechanism by which we develop into resilient, intelligent, and adaptable individuals. Play is hardwired into our brains. This book is a fascinating mix of the latest social, biological, psychological, and neurological research and inspiring personal stories about how play can change lives. It demonstrates why playing might be the most significant work we will ever perform.