Why do humans have a preference to over eat or over indulge and not just be satisfied with what is needed to sustain their life and health?
In: Biology
It’s not just humans that have a tendency to overeat. Fat dogs and cats exist, as well as animals like raccoons. The mechanisms that tell you to stop eating (by sensing how physically full the stomach is, blood sugar levels, timing of when you eat, setpoint weight, etc) haven’t adapted to the very recent trends of modern food (food has a lot of sugar and is more convenient than ever).
Human physiology evolved when food was scarce and where eating as much as possible was evolutionarily favored.
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