Huge beads of sweat slid down from Chu Nan's forehead, which had twisted into a striped path due to pain, and melted into the diagnosis and treatment bed under him, which had already been soaked with bloodshot sweat all over his body, making the entire diagnosis and treatment bed seem to be soaked in blood, turning into a shocking and strange blood red.

"Ho...... Ho...... Roar ......"

Chu Nan gritted his teeth hard, but he still couldn't help but let out a low roar of pain from between his teeth, his whole face had been distorted, and his body was constantly twitching gently.

The exposed skin was covered with traces of blood at this time, and the whole person seemed to have become a bloody person.

However, Chu Nan still tried his best to control his body, not allowing it to make any particularly big movements, and at the same time, except for devoting a part of his attention to forcibly suppressing the pain, most of the rest of his attention was focused on the operation of the internal breath in his body.

When he was practicing the Nine Turns of the Heart Method before, Chu Nan had already confirmed that with his current meridian strength, he could only withstand the second turn of the Nine Turns of the Heart Method at most, and once the three turns of the Inner Breath were carried out, the meridians would not be able to bear it, so he had never really run the Three Turns of the Inner Breath completely before.

But now, he is gritting his teeth and holding on.

His previous attempt was not wrong, when the internal breath had gone through the second turn, it had basically reached the upper limit that his current meridian strength could hold.

And when he let this internal breath flow out through the dantian, and after continuing to make three turns in his body, the meridians that flowed through immediately exceeded the load limit they could bear, and all the meridians were cracked, and even a small area of damage appeared.

In this case, this internal breath circulated in his body, giving him the feeling of a knife scurrying in the meridians, and everywhere it flowed, it would bring him great pain in the destruction of the meridians.

This kind of pain from the deep inside of the body is extremely unbearable, if it were a normal situation, Chu Nan would probably have given up long ago and continued to do so.

However, now there is a belief that supports Chu Nan, making him grit his teeth hard and continue to persevere.

Be sure to succeed!

Be sure to get promoted!

Be sure to win!

Because of the pain, Chu Nan had to distract part of his attention to forcibly suppress it, and because the control of internal breath must be more refined and precise this time, so this time the internal breath turned three times, and the speed at which Chu Nan controlled the flow of internal breath was much slower than the previous two operation weeks.

Correspondingly, it also brought him a longer period of pleasure.

However, Chu Nan didn't even allow himself to feel numb to the pain, because he had to clearly grasp the most accurate situation of the internal breath after the circulation of each meridian, and there could be no deviation, otherwise his attempt this time would be almost in vain.

Great pain, but he couldn't give up, and he couldn't try to slow it down, and he couldn't even distract himself and let himself be in a trance, Chu Nan tasted the feeling of living like a year, or even a second like a year, for the first time in his life.

Fortunately, his Nine Turns of Mind Method had only been cultivated to the third level after all, and the meridians he had opened up were limited, which greatly limited his strength, but it also made him not suffer so long now.

Finally, after Chu Nan didn't know how long he had been holding on, the three turns of internal breath circulated around the meridians in his body with great difficulty, and he was obviously much stronger and stronger than before, and returned to the dantian.

At this time, Chu Nan was finally able to relax his tense spirit a little.

However, this relaxation, the intense pain that emanated from all over his body hit at the same time, and he couldn't help but open his mouth and let out a long scream.

"Ah――――――h

After a long while, Chu Nan exhaled a breath and barely regained his composure.

After breathing slightly, Chu Nan spoke extremely weakly.

"The main control of the optical brain, perform a full body examination."

"Okay."

All kinds of probes swarmed up, and after a while, they completed the full body examination of Chu Nan.

"Student Chu Nan, your blood vessels all over your body have been damaged to varying degrees, and all the data in your body are at a very low level, so it is recommended to receive corresponding treatment immediately."

"Alright, I got it." Chu Nan let out a breath and waved his hand. "No need for treatment, you continue to monitor my physical condition. As before, if it's not life-threatening, don't worry about it. ”

The main control optical brain did not immediately agree this time, but surrounded a bunch of detection probes without Chu Nan's order.

"Warning. Trainee Chu Nan, your current physical condition is already at a very dangerous level, and if you continue with what you did just now, it will most likely lead to life-threatening conditions. ”

"So it's not life-threatening yet." Chu Nan smiled, thinking that this master control light brain really has super high artificial intelligence, which is completely different from ordinary light brains.

"Warning. If your life is in danger, I will force you to receive the corresponding treatment according to the procedure. ”

"Okay, I'm not just asking you to do that."

Chu Nan glanced at the various monitoring probes around him, as if he was facing a great enemy, took a breath, calmed down, closed his eyes again, reunited his spirit, and a trace of internal breath was born from the dantian.

This time, instead of performing the three rotations of the internal breath again, he adjusted this faint internal breath to a high-frequency vibration state, simulating the form of high-frequency pulse convection, and carefully and slowly moved forward in the damaged meridians just now.

When he learned this method inadvertently before, Chu Nan found that this special internal breath operation method can not only enhance the activity of muscle cells, thereby relieving muscle fatigue and treating muscle trauma, but also has a certain therapeutic improvement on the meridians.

Now that the meridians were seriously injured because of the forced internal breathing three turns just now, Chu Nan tried to use this method to repair the meridians without borrowing external forces.

In this experiment, it was immediately discovered that this method did work wonders.

Because of the weak strength of this thread of internal breath in the high-frequency vibration state, it will not cause damage to the already injured meridians again, but can make Chu Nan clearly feel that the outer wall of the damaged meridian blood vessels immediately seems to come back to life after this thread of internal breath flows, and begins to heal rapidly at a clearly visible speed.

After a week of running like this, it was obvious that the meridians had improved somewhat.

Chu Nan's spirit perked up, and he continued to control this trace of internal breath to maintain a high-frequency vibration state, and continued to operate in the damaged meridians.

The damaged meridians actually improved little by little, and the effect was even better than receiving the treatment of the main control light brain.

After thirty-seven weeks of operation, Chu Nan felt that the damaged meridians no longer felt painful to him.

He was still not very relieved, and once again controlled that trace of internal breath for two days, and then ordered the main control optical brain: "Another full body examination." ”

"Okay."

Soon, the monitoring probes were doing their job.

"Student Chu Nan, your current physical condition is good, but the lack of nutrients in your body is serious, it is recommended to supplement all kinds of nutrients immediately."

"Severe nutrient deficiencies?" Chu Nan was stunned for a moment, thought about it, and felt that it should be because he had left too much blood and sweat just now. "Hmm...... Then give me something to add. ”

"Okay, I'm getting a nutrition shot for you, please wait."

After a while, a probe quickly approached Chu Nan, and a thin needle suddenly stretched out from the front end, and then unceremoniously pierced Chu Nan.

A stream of heat seeped into Chu Nan's blood vessels from the needle, and quickly flowed through his body, and Chu Nan immediately felt that his whole body was full of strength again, and his spirit was also lifted.

"Good."

After receiving the basic influence supplement, Chu Nan clenched his fist hard, feeling that he had once again regained his vitality, and then took a deep breath, paused slightly, and there was another internal breath in the dantian, which quickly circulated in the meridians completely.

Next, this internal interest does not stop at all, and the second rotation of internal interest is completed.

Then the internal interest rate still did not stop, and the domestic interest rate began to turn three times again.

"Ho...... Ho ......"

The meridian blood vessels that had just been healed began to rupture again in an instant due to the super internal breath of the three turns.

Although he had been mentally prepared enough, Chu Nan still involuntarily let out a moan and roar of pain because of the great pain.

However, this time, in addition to the helplessness of enduring the pain, there was also a hint of surprise in his heart.

Compared to when I tried to breathe three times just now, this time the pain was obviously less, and the damage to the meridians was obviously weaker.

This is enough to prove that after the damage just now and then repaired, the meridians have become a little stronger.

It's not particularly obvious, but it's completely recognizable.

If it weren't for the fact that he was continuing to work hard to insist on the three turns of internal breath, Chu Nan would almost have laughed.

This bold attempt seems to be really effective!