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Why Are We Fat?

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Joined: 20 Mar 2006
Posts: 1273
Location: Kent (East Hill), WA

PostPosted: Fri Jan 18, 2013 3:08 pm    Post subject: Why Are We Fat? Reply with quote

The question of why are we fat is often depicted as simple inputs and outputs.

People are fat who eat too much, or eat the "wrong" foods, the diet docs tell us.

But is that how the body operates? Think of the range of conditions in which the body operates. Hot to cold. Night to dark. Beach to Mountain. Low oxygen to high oxygen.

In all cases the body can survive these external changes partly because of tools and shelter, but also because of homeostasis. The body has corrective mechanisms that always try to bring it back into balance.

For example, no matter the temperature, the body maintains its internal temperature at 98.6.

This is what is puzzling about obesity. We are not inert storage bins which get more full if you increase the amount and rate at which you add stuff. One would expect that the body would react to plentiful food by increasing its metabolism. Yes, it might store some as fat, but then it would naturally burn that fat off to bring the body back into balance.

The fact that this is not happening, might suggest that the types of conditions we have created, or nature has created now, are those which affect not only an increase in the food supply and a change in the types of foods, but one where the body's homeostatic balance in affected. Something is turning the calorie thermometer.
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