He thought: Why are many athletes in poor health when they are old? There are either problems here or there. Part of the reason is that high-intensity training has caused certain damage to their body, but another very important reason is that they sweat too much when they are young, their pores open too badly, and their vitality is seriously damaged, so that they are empty and have no gas to rely on when they are old.

Moreover, many weak people take a hot bath for a long time. Why are they dizzy?

Because the pores open too long, the vitality in the body runs out.

Thinking of this, Li Yundong has unknowingly run another five kilometers. If he had run two thousand meters in the past, he would have been out of breath. But now Li Yundong only feels his breath running. The whole body is like a high-speed motor. The breath in his body drives his body and makes him run more and more powerful, The more you run, the more comfortable you feel.

At this time, Li Yundong had understood what "running is also a kind of practice" meant.

Ordinary practitioners are afraid of sweating and opening pores, because they are afraid of the leakage of vitality.

Li Yundong is different. At this time, he is afraid that the boiling vitality in his body will not go out. He is like a pressure cooker. If the hot gas always increases and expands, the whole pot will explode, but if there is an air leak, the pot will not explode.

As soon as Li Yundong ran and sweated, the heat in his body immediately found a place to vent, and his whole body became a huge cauldron covered with a lid.

Ge Hong, the great master of the Dan Ding sect in the late Eastern Han Dynasty, believed that the human body is a big Ding furnace. If people want to cultivate internal alchemy, they must take essence and Qi as medicine, burn and refine with God, and finally practice internal alchemy!

The basic Kung Fu foundation of cultivation is a process of refining the essence of human body into internal alchemy with God!

Ziyuan previously thought that although the Qi in Li Yundong's body was magnificent and vast, it did not condense. At this time, as soon as Li Yundong ran violently, the Qi in his body rushed and rolled, and the whole person became a pressure cooker. The closed body generated a huge pressure, constantly scouring Li Yundong's meridians and squeezing the Qi in his body.

This principle is the same as stewing bones in a pressure cooker. If you don't use a pressure cooker, the meat bones will be stewed for nearly an hour or two before they can be completely stewed. But if you use a pressure cooker, you will be angry for a while, and the meat bones will be rotten.

Li Yundong's body is like this at this time. His body is the pressure cooker, and the real Qi in his body is the meat and bones!

Unknowingly, Li Yundong ran along the main road for nearly 30 kilometers. It was noon. Tiannan city was also a southern city. It was already very hot in June. At this time, it was sunny. Li Yundong was almost fished out of the water, and there was no dry place, Step on the stone surface of the sidewalk and print a footprint!

Although Li Yundong was sweating all over, he didn't feel tired at all. On the contrary, the more he ran, the more energetic he was, and the brighter his eyes were.