Chu Nan's confidence soared when his first attempt was successful.
Once again, divide the internal breathing into 11 strands, respectively enter the 11 main meridians, and repeat for several times. Chu Nan soon tested that this is the exact frequency required for the high-frequency vibration internal breathing corresponding to the 11 main meridians, and then controlled the 11 internal breathing to adjust to the corresponding frequency.
This is undoubtedly more difficult than just now, but after two attempts, Chu Nan still did it accurately.
The internal breathing that controls 11 different vibration frequencies flows into the 11 main meridians. The meridians damaged by the internal breathing impact just exceeding the critical point strength recover rapidly.
When the meridians recovered almost, Chu Nan mobilized the intensity of 11 strands again, which was slightly higher than that of opening up the meridians at the beginning, and the internal breathing poured into the 11 meridians again.
Constantly impact the upper limit of meridians to significantly improve the strength and toughness of meridians in the process of damage and recovery. This is something Chu Nan has done countless times before and has been familiar with.
Moreover, with the experience of opening up the meridians with the fourth heavy nine turn heart method, now Chu Nan has been able to properly control the internal breathing intensity of the newly opened meridians, so that it can just exceed the limit of the meridians, so that the meridians will be damaged, but not too much, so that the damage of his meridians is too serious, and even lead to hematemesis.
Of course, pain is inevitable.
Under the impact of internal breathing beyond the upper limit, Chu Nan endured the pain and trembled slightly. The newly opened 11 main meridians were damaged again and again, but he recovered quickly again and again with the help of high-frequency vibration internal breathing.
The impact is fast at one time, and the whole process is no more than ten seconds.
It will be much slower to repair. Even if the high-frequency vibration breath with the most appropriate frequency stimulates the activity of meridian cells, it will take at least ten minutes for the damaged meridians to recover completely.
It should be said that most of the time of Chu Nan's cultivation is waiting for the recovery of meridians.
This made him miss the data rehabilitation center of Xiyun college.
With the help of the treatment equipment in the data rehabilitation center, his recovery speed will be faster than now, which can help him save bad time.
But he also knew that with the help of treatment equipment, the strength and toughness of his meridians after recovery would be affected and slightly decreased.
Chu Nan doesn't know what the principle is, but he has done this experiment before when he was in Xiyun college, and came to this conclusion through the data.
So seriously, this memory doesn't make much sense.
If you really want to say, the biggest help to him in the data rehabilitation center is to enable him to be more insured and get proper treatment immediately in case of any accident during cultivation.
After all, his cultivation method is actually quite risky. Chu Nan doesn't dare to try it himself if he doesn't have the data ability to control the internal situation extremely accurately.
After five consecutive times of impact repair, the strength and toughness of the newly opened eleven main meridians have been significantly improved.
According to the collected data, these eleven meridians can even withstand the operation of two turn internal breathing.
Chu Nan tried to mobilize internal breathing from the elixir field, quickly completed the second turn, and then circulated around the eleven meridians. It was found that the calculation was indeed correct. The strength and toughness of the eleven meridians had been greatly improved in less than an hour, which was enough to support the operation of the second turn internal breathing.
"Ha, it's long overdue."
Chu Nan happily turned his "eyes" to the other 39 secondary meridians that needed to be opened up, which were marked by the fifth weight of the nine turn mental method. He took a gentle breath and rallied his mind again, and an internal breath gushed out of the Dantian.
This breath is first divided into 11 strands, which respectively enter the 11 main meridians that have just been opened, and then divided into 39 strands in one breath. The much weaker breath is drilled into the 39 secondary meridians connected with the 11 main meridians.
Like what Chu Nan did just now, he now tries to open up the meridians with multithreading synchronization again.
However, compared with just now, it is undoubtedly several times more difficult to control a full 39 internal breathing strands at the same time, corresponding to 39 secondary meridians in different situations.
Fortunately, Chu Nan's current data capability is extremely powerful, and it is not difficult to synchronize 39 threads.
After several failures and readjustment, Chu Nan quickly adapted and mastered the method.
Under the precise control of Southern Chu, the thirty-nine internal breathing continuously impacted the thirty-nine secondary meridians, and soon tested the best strength needed to get through them.
Next, things are much simpler.
Thirty nine internal breaths of different intensities poured into the thirty-nine secondary meridians at the same time, and Chunan felt the pain more dense and frequent than just now, but the intensity was slightly weaker.
Chu Nan's face remained unchanged this time, and all his spirit focused on accurately controlling internal breathing.
This time, it was a little slower than when opening up the 11 main meridians before.
Although the secondary meridians are easier to open than the main meridians, because the secondary meridians are more fragile than the main meridians, we need to be more careful when opening them in a rough way, otherwise it is easy to greatly exceed the upper limit of these secondary meridians, resulting in too serious damage.
Chu Nan carefully controlled the thirty-nine internal breathing at the same time and let them flow slowly through the thirty-nine secondary meridians.
A success!
No accidents!
Thirty nine secondary meridians were opened at the same time in less than half a minute!
Chu Nan didn't leave any proud and happy time for himself at all. He immediately controlled the thirty-nine internal breathing into the thirty-nine secondary meridians. After nearly ten minutes and hundreds of attempts, he tested the internal breathing vibration frequency most suitable for the repair of the thirty-nine secondary meridians.
Then, the work repeated before was repeated again, and 39 secondary meridians were impacted and repaired.
Another hour passed.
Chu Nan was running two turns of internal breathing, which flowed all the way through the 39 secondary meridians. He didn't feel any obstacles, and didn't find any signs that the meridians couldn't bear it. He was happy in his heart.
These 39 secondary meridians can even withstand the normal operation of two turn internal breathing, which proves that he has really succeeded in opening up the meridians needed by the fifth level of nine turn mental skill.
In other words, he is only one step away from the fifth level of the nine turn mental skill.
Chu Nan remembered the fifth level of the nine turn mental method clearly in his mind. Take a deep breath. An internal breath rises from the Dantian and flows rapidly in the body according to a different track from the previous one. It not only flows through those meridians that have been refined and improved long ago, but also flows around the newly opened 11 main meridians and 39 secondary meridians and returns to the Dantian.
Chu Nan couldn't help smiling when he felt that this internal breath had increased by 0.878368% compared with when he left Dantian.
Compared with the fourth level, the fifth level of the nine turn mental skill is indeed more exaggerated. The improvement of internal breathing brought by one day's cultivation has been nearly three times!
However, this is not the most important.
When the internal breathing flows through all the current channels at the same time, Chu Nan feels that the whole body seems to be affected by the internal breathing, and every inch of muscle seems to be stimulated by the internal breathing, so it is full of strength. The operation of the internal breathing is far smoother than before. As long as Chu Nan wants it to flow where, it flows very obediently.
Chu Nan grew up, calmed down and kicked out.
"Bang -"
A strong wind sounded, accompanied by a violent gas explosion.
When this kick is kicked out, the mind changes and the breath naturally flows into the right leg, which directly increases the strength of this foot to a full 973.736191 kg!
Chu Nan threw his arm and waved it back more casually.
"Pa --"
The same strong wind sounded, but this time it was accompanied by a crisp air explosion as if the air had been flattened.
Chu Nan didn't care about any moves to cooperate with the internal breathing movement. He just thought that the internal breathing needed to be moved to the palm of his hand. The internal breathing surged in the elixir field, which easily passed in an instant, making the strength of this extremely random palm as high as 784.718681 kg.
"Bang bang -"
"Pop pop --"
Chu Nan used both hands and feet. In a moment, he had raised more than ten feet and hit more than ten palms. Each foot and each foot easily brought out the surge of internal breathing, with amazing strength.
"Ha ha -"
Chu Nan couldn't help but feel the internal breathing flowing easily and moving at will. He burst into a burst of laughter full of surprises.
From now on, he has become a true breath level warrior! (to be continued)