There was a major discovery that surfaced from the starvation during the Great Depression. Yes, people went to bed hungry. However, eating less increased the life-expectancy by six years for the population at large. How? The less you eat the longer you live. It was first noticed that when you eat less, your body repairs itself. When you eat more, your body creates more cells and does not repair what exists. Hence, all the studies demonstrate if you eat less, you can increase your life expectancy by 20% to up to 40%. (Watch: Documentary)