Deprived of food, our bodies do the best they can to keep us alive and functioning as long as possible. As the days pass, the rhythms of our lives change: our metabolism, our heartbeats, our hormones, even our thoughts shift to adjust to this period of scarcity. This response is evolutionarily engrained, following a variable but fairly prescribed path. In this episode, we trace that path, exploring what happens when our bodies are not given the energy stores they need, how patterns of metabolism alter, leading our bodies to consume themselves, and the profound consequences this has on every part of our physiology and psychology. We also tell the story of how we came to learn about these outcomes, chiefly through a WWII-era study called the Minnesota Starvation Experiment. This is the first of two episodes centered around malnutrition, starvation, and famine. Next week, we’ll explore the broad topic of famine, of which starvation is merely one component.

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