Here’s another way to look at it: Our fat calls are basically our microscopic safe-deposit boxes where we store fat, which is the body’s reserve source of fuel and energy. Remember, we have evolved over many thousands of years to survive prolonged periods of starvation. So our bodies are brilliantly programmed to convert any excess calories we eat into fat, and store it in our fat cells. Unlike the safe-deposit boxes you find at the bank, which are made of steel, fat cells are amazingly flexible. They grow bigger and bigger when excess fat is deposited into them, such as after a rich meal. And they shrink down to near-nothingness when we aren’t eating enough calories and so we make ‘withdrawals’ of fat to help feed the body.
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