People are always asking Dr. Jordan Metzl: I have 30 minutes per day. Is that enough time to make a difference? His answer? 30 minutes is enough time if you know how to use it. This book explains the science of the compressed, high-intensity workout and provides a series of progressive workouts ranging from 10 to 30 minutes for every level of athlete. This book also guides readers through relevant topics like motivation, goals, and the importance of proper recovery with the right high-intensity workout, combined with a scientifically designed and periodised training schedule, Dr. Metzl delivers maximum results in minimum time in a unique and compelling way that is equally effective for men and women, children and adults.