Instruct: Classify a given Amazon review as either positive or negative.
Query: Time to play

This book is fun to read, thoughtful, and inspirational. Frank Forencich has figured out how fitness got boring and why "working out" really seems like work: we've forgotten the importance of play. This book is satisfying on a number of levels -- intellectual (it discusses the importance of function in an evolutionary context), emotional (it reminds us how fun it USED to be to exercise), and practical (it gives us good, simple roadmaps to recapturing the love of movement we had as kids). Forencich gives the reader a great paradigm: focus on function, and the other benefits of fitness will come naturally. The title isn't just tongue-in-cheek -- by the end of the book you realize that not just the quality of your life but your life itself might really depend on your playing as if your life depends on it. This book goes way beyond your typical exercise book. It's the only one of its kind I know of. As a fitness book, though, it's definitely the best I've read. Ever.