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Hunger, weight loss and obesity | Stephan Guyenet, PhD

The Proof with Simon Hill

CHAPTER

The Genetic Component of Obesity

If you took our ancestors at birth, they would have all of their behaviors and norms stamped in that are appropriate for their environment. And what you see in hunter gatherers is they absolutely stuff their faces when they have the opportunity to. So imagine a person with those kinds of social norms now gets put into the modern industrial environment and then he walks into the grocery store. I mean, it would be a total disaster. But I think, you know, the genes as well, which was what your question really was about. Our genes couldn't have changed rapidly enough to explain the rise in obesity that we've seen.

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