Burn

In this book, Herman Pontzer challenges conventional wisdom about metabolism, exercise, and weight loss.

His groundbreaking research shows that exercise does not increase our metabolism; instead, humans burn calories within a narrow range of nearly 3,000 calories per day, regardless of activity level.

This evolutionary strategy, while beneficial for survival in times of famine, contributes to modern obesity.

Pontzer emphasizes that weight loss requires cutting calories and that all diets succeed or fail based on calorie intake.

He also stresses the importance of exercise for maintaining optimal body function, even if it does not lead to weight loss.

The book is filled with facts, memorable anecdotes, and insights into how metabolism controls various aspects of health, from fertility to immune function.