At first, this feeling made Li Yundong very uncomfortable, just like the feeling he had experienced when he stormed in the school, as if he had become a pressure cooker. His body was full of expanding heat, and the more he ran, the more he swelled. Li Yundong wanted to tear his clothes all over, and then cut his chest open to let the breath in his body leak out.

Li Yundong wanted to stop and let the breath in his body calm down slowly, but he suddenly remembered what Ziyuan said about the first run. Don't stop. Run as far as you can until you can't stand it.

As soon as Li Yundong gritted his teeth and buried himself in his head, he continued to run again. In this way, he ran another five kilometers. Li Yundong had already left the city. He began to feel his whole body hot. Each of his 36000 pores was pricked by a needle, which was painful and itchy.

Li Yundong couldn't help but be a little shocked and didn't understand why such a situation occurred.

But he thought about the Yellow Emperor's Internal Canon he saw, and unconsciously searched for the knowledge in his mind to explain this phenomenon.

After thinking for a while, Li Yundong really couldn't stand the feeling of the manic heat rushing wildly in his body. His pores opened and his body began to sweat.

With this sweating, Li Yundong immediately felt less muggy in his body. Li Yundong was in great spirits. Suddenly, his heart moved. It seemed that he understood the reason why Ziyuan asked him to cultivate himself by running.

Li Yundong was a little surprised: when people's pores open, the vitality in the body will go out, and running makes all the muscles and viscera in the body move, and forces the pores of the whole body to open and excrete the vitality in the body.

Vitality is the most precious essence of a person. According to the theory of health preservation, vitality is as much as it is born. It can not be increased, but will only be reduced. Some people have more vitality in their life, while others have less vitality, just like a gas tank, some gas tanks are large and some gas tanks are small.

Li Yundong thought in his heart while running, witnessing his self enlightenment: people who do not know how to practice can not increase their vitality, and their vitality will only decrease slowly with the passage of years.

Why are children's eyes black and bright? And many people's eyes are dimmer as they get older?

Because children have the most vitality, their eyes are black and bright. With the growth of age, they do not pay attention to self-cultivation, so that the vitality in their bodies is lost, resulting in their eyes no longer looking.

In health care, control your vitality and don't leak easily. One of the most important things is: don't sweat!

People are the most energetic when they are young, so they often don't pay attention to this and often sweat all over, just like taking a bath. They don't know that this is a big injury to their vitality.

As Li Yundong ran, he thought about these problems in his mind. He was an extremely smart man. Before, Ziyuan only touched a little, he understood a lot of problems by analogy.