Late at night, everything is quiet.

The roar of factory machine tools came faintly in the distance.

Chen Shouyi lay in bed and did the most basic meditation to refine his body.

A huge and nuanced human body image is reflected in the heart, the fine dust is completed, and astronomical information flows into the brain like a tide.

Every part of the body, including the brain, is bright without any shadow. Every cell is like an electrified bulb, emitting a weak and mysterious will light.

Like an independent life.

At this time, his mind was attracted by the neural network that constantly sent out electric pulses.

His nerve fibers are surprisingly thick, and the nerve endings are extremely dense, like tentacles and forked roots.

If the brain determines intelligence, then the nervous system, including the spinal cord, determines agility.

Both of these are his weaknesses.

Unfortunately, the former can also burn belief values to make up for it, but the latter has nothing to do except to practice harder.

As a result, every battle it has a sense of inadequacy, unable to incisively and vividly.

He suddenly felt, "maybe it's not impossible!"

He opened his eyes, which sparkled.

Even as a high school dropout, he knows that the factors affecting the speed of nerve transmission are mainly related to height, the thickness of nerve fibers, and nerve myelin sheath.

Height.

This cannot be changed.

Even if he can change, he doesn't want to grow shorter.

Thickness?

He felt and found that he was very rough.

It is almost twice that of ordinary people.

And more dense.

Most importantly, it is too risky to directly transform nerves.

The nervous system is quite complex.

Every nerve activity involves complex chemical reactions.

The different frequency of each electric pulse represents the different signals sent. When many nerve cells work together, people can see, hear, smell, taste, feel pain, and even feel happiness and sadness.

This is a chaotic and complex system, which affects the whole body.

In contrast, myelin sheath is much simpler.

It has only three functions:

First, supporting axons and surrounding tissues, such as adjacent axons, are insulated from each other to avoid interference, which is equivalent to putting an insulating layer in the exposed wire.

Second, it accelerates the transmission of action potential through a mechanism called "jumping conduction";

Third, guide the regeneration of axons when some axons are damaged.

Even if it is destroyed, it will not affect neural transmission.

At most, the signal slows down fifteen times.

In fact, the nervous system of some invertebrates, such as cephalopods, crustaceans and insects, has no myelin sheath at all.

In mammals, the pain and temperature sensing nerve fibers and the postganglionic fibers of the autonomic nerve also have no myelin sheath. Of course, these gods often exist in the same nerve bundle as the myelinated nerve fibers.

The more Chen Shouyi thought about it, the more practical it felt. He couldn't lie down anymore.

He took the two little dots out of his chest, put them aside, got up from the bed and walked around excitedly.

The experience of the past few days made him feel powerless and desperate, and he couldn't wait to be strong.

Now his cultivation speed has been slower and slower, almost stopped, and he had to be forced to think on the wrong road.

He suddenly stopped, went to the desk, picked up a glass of cold water, and drank it in one gulp.

"Then try!"

……

Two principles of natural evolution.

1: Evolution is directionless and random.

2: Just enough.

Life is a miracle of nature. It is also imperfect, rough, and even patchwork.

Since human beings walked upright, the problem of dystocia has run through the whole human history like a nightmare.

In ancient times, childbirth for women was equivalent to stepping into hell. It was not solved until the invention of caesarean section.

Of course, in turn, this has also led to the interruption of normal natural screening. In the past hundred years, the proportion of big headed babies has soared, making it more difficult for women to naturally reproduce.

It can be said that since the birth of civilization, human beings have deeply interfered with their own evolutionary process.

……

Chen Shouyi did not rush forward, but went deep into the body and carefully observed the myelin sheath structure and working mode on the nerve fibers.

More than ten seconds later, he realized in his heart.

In this deep observation at the molecular and even atomic level, there are not many mysteries of biology, and everything is clearly presented in front of him.

He found that the reason why myelin can "jump transmit" signals is mainly because of the unmyelinated part between two Schwann cells (a kind of glial cells). The axon here is exposed, which is conducive to the formation of local current between the two adjacent junctions, so that the electrical signal is transmitted in a jumping manner, which greatly accelerates the speed of information transmission.

Then it's simple.

He immediately came up with three countermeasures.

First, reduce the myelin sheath nodes on nerve fibers and simplify the structure.

For example, it was originally necessary to jump more than a dozen times. If you only jump six times, or even twice, the speed of signal transmission will undoubtedly be greatly accelerated.

Second, the Schwann cells and Langfei node on the myelin sheath were transformed and strengthened to make their work more efficient.

Third, make some kind of superconducting structure.

Of course, Chen Shouyi has no clue about the latter two for the time being.

But the former can be tried now.

Chen Shouyi took a deep breath and chose a little finger of his left hand to test.

Most of the Schwann cells were silently decomposed by the idea, exposing the nerve fibers, and then lengthening the nearby Schwann cells, covering the original space, and finally fixing the structure.

Transformation is simpler than expected.

All the cells in his body, for him, are like arm commands, and neurons are no exception. Most of them have completed an idea.

Just a second or two.

The little finger has been completely transformed.

However, when he opened his eyes, he found that his fingers did not become more flexible, but became dull and numb. He laboriously bent, feeling and thinking slowed down for several beats, and his eyebrows were frowned:

"It's really not that simple." He thought:

"What on earth is wrong?"

"Is it because too many nodes are cleared, which affects the transmission efficiency of neural signals?"

He continued to experiment.

"It affects the membrane potential again!"

……

"Well, what haven't you considered?"

……

As time passed, the sky gradually brightened, and Chen Shouyi lay in bed without any intention of getting up.

Lay down until noon.

He suddenly opened his eyes and looked surprised.

Finally succeeded.

It feels like a body without a thick body. He hurriedly opened the property panel:

Strength: 26.0

Agility: 26.6

Physical fitness: 26.0

Intelligence: 26.0

Perception: 24.7

Will: 24.7

Energy accumulation: 63.35

Belief value: 21450.2

Talent ability: self healing (super): 50.01%; Giant combat body (super): 99.99%; Control the atmosphere: 55.01%.