Q23 What is the cause of overmuch lean figure? A If it is the contents of a meal of a present-day advanced nation, as long as there is no much matter, they cannot become thin automatically. We are leading the blessed eating habits so much. Those who worry about overmuch lean figure need to do their best in the cause investigation. The healthy maintenance system which described the point works effectively to starvation rather than the case too much where it fattens. In a human-beings in history, saying "it is troubled with fattening too much" etc. is the phenomenon which happened recently just. Since the long term human beings till then were afflicted by repeated starvation, they are natural matters. A healthy maintenance system opposes with various enzyme to starvation. The more there is little food, the more it tries hard to make it energy efficiently. The minimum food required because of life maintenance of a person is amazingly little. "With one chocolate, the person who met with an accident by the mountain in the winter bore for one week, and exceeded." Such a talk is also heard well. "Since there was no food, he gnawed the belt of leather little by little, and endured hunger." Such a talk is also heard. Even if it is slight food for the person in a starvation state, the body tends to make a calorie avariciously. Anyone has offered this function on the person healthy with a natural matter. The phenomenon which loses weight is not the simple thing said "The part weight decreased since the calorie decreased" etc. More than the function of a healthy maintenance system is regarded as general, it is complicated. Those who are doing the ordinary meal and become thin have to think that the serious trouble for a healthy maintenance system occurred.