Eli5: When humans get too fat or obese there is a high risk of heart related issues. But in nature for example Walrus is or hippos are so fat in shape almost their body is consists of fat and are they same sick like humans?
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No, because these animals have spent millions of years evolving to fit their environment. A skinny walrus would probably die because it doesn’t have the fat it needs to keep warm in the ocean.
Humans being obese is not natural for us. We’re meant to be walking around a bunch, doing regular physical activity in foraging for food, and eating relatively low calorie foods.
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