Chapter 653

In the process of running, Li Yundong can not only feel the true Qi in his body, like the refined steel that has been tempered for thousands of years, constantly undergoing beating and impact, but also clearly feel that the internal organs in his body are constantly wriggling and shaking with the heat in his body.

Li Yundong couldn't help thinking: why do many people who love exercise rarely get sick?

Because when they exercise, the internal organs will also peristalsis. Although this peristalsis is far from being compared with muscle movement, it is also a kind of exercise. Each exercise will mobilize the vitality of the body to gather on these organs, making them stronger and stronger.

This reason is that people who learn to sing should constantly practice their voice, even if they break their voice at the beginning, because the vocal cords are stronger and thicker.

The same is true of the internal organs of the human body.

Li Yundong knows that at this time, the organs in his body are constantly wriggling, and constantly have vitality to supplement each organ. This kind of exercise is hundreds of times or even thousands of times stronger than ordinary people.

Under the power of Renyuan golden elixir, Li Yundong exercises for an hour, which is equivalent to ordinary people exercising for a month. He exercises for a day, which is equivalent to ordinary people exercising for a year!

When Li Yundong ran another 10000 meters like this, he began to feel a dull cooing sound from his abdomen.

At first, Li Yundong thought he was hungry, but soon Li Yundong found it wrong, because the sound inside his stomach became louder and louder, and every sound made him feel a sense of body vibration. The sound was like rolling thunder in the sky, heavy and stuffy, and like the roaring of tigers and leopards in the mountains.

"Is this the thunder of tiger and leopard?" an idea flashed in Li Yundong's mind.

As a professional otaku, Li Yundong has been a martial arts fan since he first read Jin Yong's martial arts novels in senior high school. Of course, he is no stranger to tiger, leopard and thunder.

Li Yundong once read the lost Wulin written by Li Zhongxuan, the closed disciple of shape and meaning master Shang Yunxiang. It is mentioned in this book that Li Zhongxuan asked his teacher Shang Yunxiang: what is the sound of tiger and leopard thunder?

Shang Yunxiang held a cat in Li Zhongxuan's hand and said: This is the thunder sound of tiger and leopard.

Li Zhongxuan suddenly realized.

Cats, leopards and tigers belong to the cat family. They all have a common feature, that is, their stomachs make a low sound all the time. This sound is the sound made by their internal organs crawling all the time, like rolling thunder in the sky. Therefore, it is called tiger leopard thunder.

At this time, the dull voice in Li Yundong's abdominal cavity is the "thunder sound of tiger and leopard" that many people can't cultivate!

Both practitioners and martial arts practitioners spend years or even decades of hard work to practice tiger and leopard thunder and practice Kung Fu in their internal organs, while Li Yundong did it in only one day!

Li Yundong was shocked and surprised. At the same time, he lamented the magic of Renyuan Jindan. If there was no yuanjindan, he would not be able to practice tiger and leopard thunder all his life!