'Pontzer's findings have huge implications for our attitudes to exercise, diet and public health' Mark Webster, Sunday Times 'Ground-breaking, fascinating, important . we were astounded' Deliciously Ella, Delicious Ways to Feel Better A myth-busting tour of the body's hidden foundations from a pioneering evolutionary biologist Over the past twenty years, evolutionary biologist Herman Pontzer has conducted ground-breaking studies across a range of settings, including pioneering fieldwork with Hadza hunter-gatherers in northern Tanzania. This book draws on his eye-opening research to show how, contrary to received wisdom, exercise does not increase our metabolism. Instead, we burn calories within a very narrow range: nearly 3,000 calories per day, no matter our activity level. By taking a closer look at what happens to the energy we consume, Pontzer explores the ways in which metabolism controls every aspect of our health - from fertility to immune function - and reveals the truth about the dynamic system that sustains us. Filled with facts and memorable anecdotes, Burn will change the way you think about food, exercise and life.