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Dr. Herman Pontzer: How We Really Burn Calories & Lose Weight

Perform with Dr. Andy Galpin

CHAPTER

The Limits of Caloric Expenditure in Extreme Exercise

This chapter discusses the intricate relationship between exercise, caloric expenditure, and weight loss, especially through the lens of extreme physical activities such as daily marathons. It examines real-world data on the metabolic adjustments participants make during rigorous exercise, revealing a cap on caloric deficit and exploring the physiological impacts on individuals. Furthermore, it contrasts the energy demands of traditional hunter-gatherer lifestyles with modern norms, analyzing how these factors influence reproductive health and family dynamics.

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