Herman Pontzer writes popular science about human metabolism, energy use, evolution and the relationship between physical activity and body weight. Burn: New Research Blows the Lid Off How We Really Burn Calories, Lose Weight, and Stay Healthy draws on field research with hunter-gatherer communities and comparative physiology to explain how the body regulates total energy expenditure. Rather than treating exercise calories as a simple amount added to a fixed daily budget, Pontzer argues that metabolism adapts across time and that physical activity should be understood through a broader evolutionary framework. His writing is conversational and research-led, moving between laboratory measurement, fieldwork and everyday questions about diet and exercise. The book fits metabolism, evolutionary biology, nutrition science and popular health writing, particularly for readers interested in why straightforward calorie-burn calculations do not always predict long-term outcomes. Read more Less
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