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“The main evolutionary explanation for the obesity epidemic is obvious; the mechanism that regulate body weight are poorly suited for our modern environments. Taking your body into a modern grocery store is like taking your computed into the summer sun. The environment is outside the range that the control mechanisms can cope with. Our environment is so different from the one we evolved in that it’s remarkable that anyone eats normally. Our hunter-gatherer ancestors walked miles each day gathering food and hunting game, eager to satisfy hunger with whatever they could find. The food they found was mainly high-fiber fruits and vegetables and lean fish and meat. That was only a few thousand years ago, less for many populations.” — Randolph M. Nesse