Cardio exercises. Weight training. Calorie counting. You're hitting the gym five days a week and eating healthy, balancing a busy career and family responsibilities, but your workout isn't working out. Despite the hours spent pedaling, running, and lifting, the lean, muscular, six-pack body you've been sweating to attain and maintain remains stub- bornly out of reach. Let fitness guru Jay Kim show you how to optimize your workout routine and nutritious food preparation to get maximum results in minimum time. In Hack Your Fitness, Kim shares his goal-winning formula-a combination of...