While the warm air flow spreads from the internal organs, it slightly closes its eyes and starts its fourth blood exchange.

According to the records in the old mother's record of treating the air, the first blood exchange is the most difficult, and most ordinary people are stuck in this level.

If you cannot pass this level at the age of thirty, your blood and energy will fall. Even if you are lucky enough to break through, it will be difficult to make any progress.

In addition, the difficulty of blood exchange lies in the accumulation of resources and the progress of internal Qi cultivation and submission method.

At least nine blood exchanges were used to condense like a blood qi, and there was no life danger.

"However, Liansheng's words to teach those lunatics may not be credible. You should be careful, blood is nothing small..."

Yu Yang didn't dare to be careless.

He has had some insight into the madness of the Christians.

The "danger" that these lunatics think is different from that of normal people.

The thirteenth blood exchange and the five foundation building levels.

Although three or three blood exchanges are theoretically the three-year blood exchange can condense the blood of the cow, but most people can only be driven by the fourth blood exchange.

Qi and blood are like cows, and they themselves are the integration of blood and qi.

The blood and energy that dissipates the whole body is integrated into a stream, and can be released through fists and toes, reaching the level of "combining the power of the whole body to collide with a little."

It’s not about training a cow in your body.

call!

suck!

With the long breathing sound, Yang Yu's mind was calm.

The warm inner breath circled from the courage of the dantian to the middle of the eyebrows, and all the meridians and internal organs in the body have emerged in the heart.

As his thoughts move, his inner breath sinks.

The blood that was flowing slowly suddenly increased its speed, and his skin became red to the naked eye, and the temperature in the house also rose.

It was like there was a flame burning in his body, boiling blood, roasting muscles and hardening internal organs.

Gradually, Yang Yu's breathing became longer and longer.

The blood in his body became more and more viscous and hotter.

call!

At one moment, the closed pores around him suddenly opened, like a flash of fire, and the room suddenly lit up for a moment.

And if someone is here.

You can see that the ribs on his chest are no longer one by one, but are trained into one like plate armor, protecting his internal organs.

Under the blood light, his membrane became transparent, and it can be seen that his tendons became extremely thick, accompanied by the flow of blood, like countless dragons coiling around his body.

It is precisely because these two are extremely prominent that their internal organs, membranes, and even the big dragon on the spine all look slim and pitiful.

Every time you exert force, you will be squeezed into the corner first.

Every time Yang Yu fights with others, he will feel the stinging pain all over his body. It comes from here that the ribs and tendons are too strong, and even if it drives other organs, it will be strengthened.

But compared to these two, it is far from comparable.

call!

suck!

It was unknown how long it took for Yu Yang's breathing to return to normal rhythm, the boiling blood began to fall back, and the rushing inner breath gradually returned to the Dantian.

Only part of it is hovering in Niwan, eyes and ears.

His eyes were still closed.

But his ears flashed, and through the movement of the airflow, he actually combined the scene of the whole room in his heart.

Frozen lamp oil, cooled medicine, geckos climbing on the wall, unknown insects running around the corner...

And, the roof was so slight that he could hardly notice the breath.
Chapter completed!