Studies have shown that people's basic metabolism is directly proportional to their body surface area, and body surface area is directly proportional to their height. If you increase your height by 5%, your body will consume 20% more energy. If you are short, your body surface area will be smaller than that of a tall person, so you will consume less energy every day, need less nutrition, and your body will be more tolerant.
On the basis of 168cm, every increase of 2.5cm will consume 5% more energy, and every increase of 10cm will increase the weight of 16%. The higher the body, the farther the limbs and head are from the heart, the longer the route of blood circulation, the heavier the burden on the heart, and the life span may be affected. However, human females are generally shorter than men, but their average life expectancy is higher than men, or there is a reason for this.
The research shows that when the height is 168cm and the difference between front and back is less than 2cm, the daily oxygen intake or food intake can be in the most balanced state with the body, and the burden on the heart and other organs is the least. Therefore, from the health point of view, the ideal height of human beings should be 168cm, and of course, the range from 166 to 170 cm is the standard value.
Although the results of this study have come out long ago, even western countries have begun to consciously control their height, but for us in China, we are still very dissatisfied with this height standard.
Since the birth of the child, parents have never restricted the child's diet on the grounds that the child has grown up, so that many children now have the characteristics of precocious puberty because of overnutrition.