I met a fabulous woman yesterday - Young, "not old"- and we had a lovely conversation as my Honey shopped for hair products. Young was well traveled and wise. During our exchange, she summed up the problems plaguing most humans, especially Americans.
According to this sagely woman, for one to remain in good health, it is important that you not eat to fullness. It is better to eat 'just enough,' leaving a bit of room in the stomach for proper digestion. So, too, it is with life. We mustn't stuff ourselves to capacity, but take/use only 'just enough.'