- ISBN: 9781591202769 | 1591202760
- Cover: Paperback
- Copyright: 3/1/2011
Research shows that people who diet regularly are more likely to experience weight gain. Clearly, weight loss alone is not the key to long-lasting fitness. Neither is exercise. Based on more than fifty years of research and recent breakthroughs, this book shows how anyone can switch on their four main fitness circuits and achieve the level of fitness he or she has always wanted.