The book tells the story of how we never evolved to exercise - to do voluntary physical activity for the sake of health. Using his own research and experiences

In industrialized nations, our sedentary lifestyles have contributed to skyrocketing rates of obesity and diseases like diabetes. A key remedy, we are told, is

A simple approach to weight loss and better health, with an exhaustive (and exhausting) collection of fun, fat-torching, life-changing workouts that can be tail

WINNER OF THE NATIONAL BOOK AWARD FOR FICTION NATIONAL BESTSELLER “Electrifying” (People) • “Masterly” (The Guardian) • “Dramatic and memorable”

Exercise training provokes widespread transformations in the human body, requiring coordinated changes in muscle composition, blood flow, neuronal and hormonal