you have an authoritative reference that allows you to apply research-based guidance to your unique health and fitness needs. With a focus across the life span, this resource shows you how to pursue optimal health and fitness now and throughout the years to come. The American College of Sports Medicine, the largest and most respected sport science and medicine organization in the world, has created this book to bridge the gap between science and the practice of making personal lifestyle choices that promote health. This new edition contains age-specific advice within the framework of the latest research, thus helping you to avoid the lure of fads, unfounded myths, and misinformation.