This book is written by Brad Stulberg and Steve Magness. Stulberg researches, writes, speaks and coaches on health and the science of human performance. Magness is a perfomance coach, author, and lecturer and is currently the Head Coach of Cross Country at the University of Houston. These authors write about how to attain and, more importantly, sustain a high level of human performance (both mentally and physically), whilst avoiding the pitfalls of burnout and underachievement. They draw upon examples in both sports and business and use those examples to understand the similarity in problems and solutions they share. The main topics addressed are: optimally alternating between periods of intense work and rest; developing and harnessing the power of a self-transcending purpose; and priming the body and mind for enhanced productivity.