In our daily life we don't worry about how we should get tomorrow 's food, unless we are extremely poor. If we get hungry, we can buy sandwiches at a convenience store even at 3 o'clock in the middle of the night. But in the past ten thousands years or even several thousands years, tomorrow's meal was the biggest problem.Therefore, we were always afraid that food would be unavailable tomorrow, and the body was equipped with a system to preserve energy surplus obtained from today's food. The most efficient way was to store it as fat.
If excess sugar is accumulated in the body as it is sugar, we surely suffer from diabetes. And cancer cells like sugar, the incidence of cancer rises. Because extra calories are transformed into fat, we do not suffer from serious diseases. And fat cells secret Leptin (a peptide hormone) that helps to regulate energy balance. In other words, fat is very important. It is something we must not miss, and is never an enemy to hate.
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