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

Because our body is not perfect, just good enough.

And for most of our evolutionary history, this was good enough trait to ensure the survival of species. Morbid obesity was anomaly, so there was no evolutionary pressure to protect against it.

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