You'll transition out of the regimented, carb-dependent, fat-storing Standard American Diet, the chronic, overly-stressful exercise patterns recommended by Conventional Wisdom, and other health-compromising elements of hectic modern life. Instead, you'll smoothly implement the evolution-tested lifestyle behaviors of our hunter-gatherer ancestors to promote "optimal gene expression." By eating Primally, you'll enter Sisson's so-called "Fat Paradigm," where stored body fat becomes your body's preferred fuel choice, and energy, hormones, metabolism, and immune function are optimized automatically. With an intuitive mix of simple Primal workouts, you'll get exceptionally fit in only a few hours per week - and have fun while you're at it!