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Because the reaction speed and functional improvement achieved by relying on adrenal hormones is not a real body reaction, but a biological sensitivity. If this reaction speed is maintained for a long time, it will greatly lose the energy of the human body, which will make people feel tired and easily develop neurologic fatigue.

Therefore, people in war will feel extremely physically and mentally exhausted after a long war.

Of course, this is just the trace secretion of adrenal hormones.

The more adrenal hormones are secreted, the stronger the body's ability temporarily improved and the longer the duration is, the more severe the body's loss and sequelae will be.

"The accumulation of force...gene center stimulates...first-level...adrenaline..." Chu Nan silently thought about these nouns in his mind, slowly connecting the front and back, and with his own guesses, he had a vague understanding in his heart.

The bean-like substance, which is suspected to be the pineal gland, should be the genetic center in this message, just like the nerve center in the human body. According to the name, this bean-like substance should be the center, or core that controls the human genes.

According to Chu Nan's guess, the Force accumulation should refer to the energy contained in the bean-like gene center.

This energy is the Force, and people can still move after death. It is precisely because of the force stimulated in this gene center that killing corpse-turned monsters can seize and absorb the Force in the other party's gene center.

Before, his genetic center had accumulated enough force, which caused changes. The role of the genetic center was truly activated or stimulated, and the ability to obtain was about the control of adrenaline.

Everyone has adrenal glands in their body. When they are stimulated, they may secrete adrenaline, which temporarily improves people's physical functions, such as agility, speed, and strength.

However, it is very rare for a situation like a sudden increase in power, speed, and agility several times, or even infinite power, like superman, to secrete super stimulation, or it is not something that can be controlled by human consciousness.

After Chu Nan's genetic center was stimulated, he had the ability to control adrenaline by artificial consciousness.

Just now, it was in this super secretion of adrenaline that his body's various abilities increased exponentially, becoming rapid and agile, and his strength doubled.

However, this temporary improvement has a very serious side effect. The courageous performance just now consumed at least one or two days of his body under normal conditions.

Moreover, his physique, whether it is internal organs, muscles, bones, or muscle fibers, will be overloaded with the sequelae of powerful forces.

Now Chu Nan felt uncomfortable all over, his muscles trembled, and his limbs were weak.

The stimulated gene center is still hollow, and there is a stream of energy flowing inside. According to the information obtained, it can be seen that it is called the Force, which is specifically called the Gene Force, which is the fundamental force to stimulate and maintain all gene activities.

Previously, Chu Nan stimulated the gene center, and the adrenaline was secreted excessively. He killed more than a dozen corpse monsters in one breath and absorbed the force of their genes. Now, the force flows in his gene center, and seems to be lurking quietly. Once enough force is accumulated again, it will once again trigger the explosion of new abilities of the gene center.

Chu Nan lay quietly on the ground, analyzing the information he received, and combined with his experiences this day, he had a systematic understanding of what was happening to him now.

"It has opened the gene center, and although it has obtained energy that can control and stimulate the super secretion of adrenaline, this ability has great side effects, so it is better to use it less." Chu Nan thought to himself.

Tang Sanli and Yu Xiaohu watched the nine people who had just arrived searching for food under the large amount of brick and stone concrete. Several people shouted excitedly, which made Tang Sanli frown secretly. They couldn't help but want to stop him. Suddenly, another sound came from afar.

"Who is it?" The reaction of the seven men and two women was not slow. Immediately, several men started to sip and raised the weapons in their hands.

These weapons, either shovels, steel sticks, or broken thick curved steel bars, were all found on the way they have walked all the way.

Tang Sanli and Yu Xiaohu also looked at the place where the sound came.

A figure jumped onto a broken wall and made a sound.

This figure was a man, but his face was twisted and stiff, and half of his face was gone, bloody and bloody, and white bones were faintly exposed. One eyeball drooped, hanging on his eyelids, shaking slightly.

There was no living person on his body, this was a corpse-turned monster.

It was just a corpse turned into a monster, and everyone breathed a sigh of relief, because there were twelve people here.

However, when everyone saw the things in the hand of the corpse-turned monster, their faces became a little ugly again.

The corpse-turned monster with only half of his face left jumping onto the broken wall was carrying three bloody heads in his right hand. It seemed that they were cut off not long ago. In his left hand, he was holding a curved knife, which looked somewhat similar to the country sickle that Yu Xiaohu used before.

"This corpse-turned monster seems a bit unusual." Tang Sanli frowned. Although the corpse-turned monster was strong and fast, it was very stiff and had a single movement. As long as it was not large in number, it was not difficult to deal with.

But the feeling this corpse-turned monster gives people is completely different.

He knew how to cut off the human head, and held it in his hand, and held a scimitar. All the corpse-formed monsters he encountered before did not use weapons at all, and only knew how to bite them.

Chu Nan slowly supported himself and sat up. Although he was still weak, he had already recovered after lying for a while. Looking at the corpse-forming monster standing on the broken wall from a distance, a strange feeling surged in his heart, because he saw the corpse-forming monster with half a face, and did not pounce on him like the monster before when he saw a living person.

It was looking at the corpses all over the ground, looking at Yu Xiaotian and nine others, and then looking at Tang Sanli and Chu Nan on the other side.

When Chu Nan saw its actions, he vaguely felt that this corpse-turned monster seemed to have a little wisdom, not exactly the same as the previous corpse-turned monster.

"Didn't it..." Chu Nan suddenly had a terrible idea.

At this moment, the corpse-turned monster standing on the broken wall hit everyone with three bloody heads held in the right hand.

"Damn it, do you want to provoke us?" A man with a strong figure beside Yu Xiaotian was furious and shouted: "This corpse-turned monster seems a bit different, let's go together!"

Although this corpse-formed monster seemed a bit different, after all, there was only one, so everyone would not be afraid. Four men immediately avoided the heads thrown by the corpse-formed monster and surrounded them with their own simple weapons.

The corpse-turned monster jumped down at the same moment. When several people dodged the heads it threw, their figure swayed and suddenly accelerated, much faster than ordinary people. The scimitar in their hand left a shadow and swung it out.

"Ah--" The sturdy man suddenly screamed, blood spilled from his throat, and he fell out with his arms. He landed on the ground, covered his neck with his hands, and kept kicking his legs, but he could no longer speak.

The scimitar in the corpse-turned monster's hand cut open his throat just as soon as it touched.

Everyone's faces changed.

This corpse turned into a monster, possesses wisdom.

Everyone has this idea.

A corpse-turned monster has several times better power than ordinary people and faster speed, but has never had wisdom and only knows the simple biting instinct. If a corpse-turned monster has wisdom and can truly exert that power and terrible speed that is several times more than ordinary people, what will it become?

The corpse-turned monster with the remaining half of his face in front of him showed this terribleness.

The strong man had his throat cut open and he threw it out, and his neck was almost half cut, and he could not survive.

The corpse-turned monster's figure drew, avoided a steel pipe that was smashed, and hooked the scimitar in his hand, and the scimitar was deeply inserted into the left chest of a young man facing him.

The young man had his eyes turned pale and wanted to say something. Suddenly, as the corpse turned into a monster, blood spurted out like an arrow, and he fell to the sky and died of anger.

The scimitar just now hooked the heart in his chest, and even the heart was almost cut in half. After suffering this fatal blow, the young man immediately died.

Almost just one encounter, two people died, and the corpse turned into monsters were hit hard.

However, he was already a monster and could not sense pain at all. As long as he did not hit a vital part like the head, even if his heart was dug out, he could still move freely.

Unlike living people, they are full of vitals, and if you are not careful, they may be fatal.

Although the two died instantly, the remaining three men and two women rushed up and formed a siege.

Although the corpse-turned monster is strong, it cannot reach the point where it cannot resist, otherwise it would not have been hit twice, and its speed is faster than them. If everyone escapes, they will only be defeated by it, and they may eventually be killed by it.

Everyone understood this principle, and Tang Sanli and Yu Xiaohu also understood it, so they rushed up, surrounded the corpse-turned monster, and joined forces with everyone to kill it.

The two people fell to the ground, and Chu Nan, who was weak and unable to move, attacked nine people.

In an instant, the corpse-turned monster suffered three heavy blows. Although it avoided the vital points of its head, it could not withstand so many people.

The scimitar in his hand swung it heavily and flew away the wooden stick that Yu Xiaotian had hit, but blood splashed out from behind it. It was cut by the sickle in Yu Xiaohu's hand, and a long wound was cut on its back.
Chapter completed!