eli5: Why will the body continue to store excess fat to the point where it jeopardizes the person’s health?

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I understand food wasn’t always so abundant, and humans were well served to store excess consumed energy as fat for later use. What I don’t understand is why the body keeps storing fat to the point where a person becomes morbidly obese and it puts their entire health at risk. Why isn’t there a point where the body just let’s the extra calories pass through without saving for later?

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Anonymous 0 Comments

That situation just doesn’t come up in the wild. Food just isn’t plentiful enough for *not* storing everything available in case of famine.

Evolution doesn’t prepare us for situations our ancestors never experienced.

(edit to add word my stupid fingers deleted)

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