At the beginning, I planned to add some martial arts settings, but no matter how I set it, I always felt a little inappropriate. So in the later stage, I erased these settings, eliminated all the systems that appeared in the previous chapters, and turned to the health theory in the "Huangdi Neijing".

The "Inner Canon of the Inner Canon" believes that the aging of the body is due to the decline of qi and blood. As long as you are properly conditioned, you can maintain the fullness of the essence. Delaying the exhaustion of Tiangui is one of the reasons why some people live a long life but do not look old.

Here, we need to explain some concepts of Tiangui first.

Many book friends say that Tiangui is only available to women, but it is not.

Tiangui is a function that promotes the growth, development and reproduction of the human body, and is also a substance that maintains the fetal meridian and fetal pregnancy. It comes from the kidney essence of men and women, and is gradually enriched by the acquired essence of water and grain.

Here, let’s first talk about the process of growth and development of men and women in the "Inner Canon of the Yellow Emperor".

Renewal of teeth is a sign of strong kidney energy (8 years old for male and 7 years old for female)

Tiangui is born, has fertility (16 years old for male and 14 years old for female)

Balanced development of kidney qi, growth of wisdom teeth, mature development (24 years old for male and 21 years old for female)

Strong muscles, plump muscles, vigorous hair growth, and body development and fixed shape (male 32 years old, female 28 years old)

Qi and blood decline, and the body begins to age (male 40 years old, female 35 years old)

The qi and blood of the three Yang meridians are exhausted, the face is dry, and the hair begins to turn white (male 48 years old, female 42 years old)

At this point, women began to enter the stage of exhaustion of Tiangui, the Ren meridian was empty, the Taichong meridian had fewer qi and blood, and they lost their fertility, and they were about 49 years old.

Men have a decline in liver qi and their muscles and bones are no longer flexible (around 56 years old)

At about 64, when Tiangui is exhausted, the essence is declining, the kidneys are declining, and the body is exhausted. When the kidney qi is reduced, the teeth and hair fall off, the kidneys are trapped in water, and the essence of the internal organs is stored. In addition to the innate innate essence, the source of the essence is also required to nourish the acquired essence of other internal organs. When men are old, they cannot get the essence and energy to nourish the muscles and bones, and their fertility function will stop.
Chapter completed!