Meng Lang, who took a hot bath, felt extremely comfortable up and down, and lay on the bed and looked at the time, it was only past nine o'clock in the evening.

Idle, he slowly sketched the shape of the photoreceptor cells in his mind, and then slowly entered the inner vision.

During the day, Meng Lang had already walked around his body, but he didn't have time to explore the brain, the supreme command of the human body.

Like other organs, the brain is made up of a variety of cells, but they are often referred to collectively as brain cells.

There are more than 100 billion brain cells, and if you put them in a straight line, the length will reach 1,000 kilometers!

Unlike other cells in the body, brain cells cannot regenerate after death.

Once the brain cells are developed in the brain, they will no longer divide and multiply, and one will die less until they die completely.

There are only as many brain cells as there were at birth!

So, use it and cherish it!

There are many mysteries in the human brain, which occupies only 2% of the body, but uses up more than a quarter of the oxygen and a third of the energy inside the body.

Every second, 100,000 different chemical reactions take place in the brain, producing enough energy per hour to light up a 25-watt light bulb!

There are more than 100,000 kilometers of blood vessels in a tiny brain, and a billion neurons are running around in the brain every second!

Meng Lang's gaze shuttled back and forth on the folds of the cerebral cortex, and in the state of inward view, there were thousands of ravines and various blood vessels criss-crossed.

It's like you've arrived in a bizarre alien world, more shocking than any sci-fi blockbuster!

Countless red blood cells carry a large amount of fresh oxygen for the brain cells to breathe.

All kinds of nutrients are continuously transported here along the blood in the blood vessels.

The immune system is also heavily defended here, and small teams of different immune cells are interspersed here to patrol and defend strongly.

Meng Lang even saw several patrols composed of T lymphocyte elites passing in front of him!

Under such a tight heavy defense, Meng Lang believes that there should be no virus that can make waves here.

Suddenly, he found that there was a mass of dark cells in the central nervous system, which stood out like a drop of ink, or rather, piercing eyes, against the gray-white environment around the brain!

Intrigued, he focused his gaze on the strange mass of cells, which numbered about 100,000.

At first glance, he felt that this was definitely not a naturally generated cell in the human body, and he had never heard of any cell that was black!

They are hideous-looking, covered in spikes, ghostly and deep, and emit a faint cold light around them.

At first glance, it's chilling!

When he saw this, Meng Lang's heart was shocked, and suddenly the entire picture was shattered, and then he was forced to retreat from the state of inner vision.

He knew that this was due to his mood being too agitated and unable to maintain his perspective, so he took a deep breath, and Meng Lang entered the inner view again with a serious expression.

As he observed, he saw that the cells had been sitting there quietly, as if they were asleep, and he didn't see any movement from them!

What's even weirder is that they don't need oxygen, don't need any nutrients, and don't participate in any metabolic activities in the human body, making them seem out of place with the cells around them!

There seems to be an invisible energy shield around the periphery of this mass of cells, and some ordinary cells in the brain that wander past cannot get close to it.

The immune cell team is also like a blind man, turning a blind eye to this group of black cells, revealing a strange and inexplicable feeling everywhere!

Meng Lang continued to observe for more than three hours before slowly withdrawing from the inner vision.

Where did this mass of cells come from, which clearly do not belong in the human body?

This made him a little puzzled, and he couldn't help but think of a group of thugs who harassed girls when he was in college two years ago and beat up a monkey outside the school, and he was hit in the head by a beer bottle in the scuffle.

But afterwards, he also went to the hospital to have a CT scan of his brain, and he did not hear the doctor say that he had found anything abnormal.

Could it be that it has only recently appeared through the use of nuclear radiation to cultivate?

But he has been wearing a lead helmet on his head, which is also a key protective part, and it is estimated that no radiation should be able to penetrate the aluminum helmet and attack his brain cells!

Fortunately, these strange cells don't seem to have any movement at the moment, and Meng Lang, who has many doubts, is already exhausted after a day of tossing, and gradually falls into a deep sleep...

Following.

Meng Lang, who woke up to the pleasant ringing of the mobile phone alarm, simply washed up, packed his luggage, and walked out of the hotel. Today is the day he has booked his ticket back home.

Although he also hoped to stay longer, his visa had expired, and there was no way to do it.

I stopped a taxi parked on the side of the road and went straight to the Kyiv airport.

Meng Lang, who had just walked into the waiting hall, saw an old gentleman with silver hair and about 60 years old, who looked like a Chinese, pushing several suitcases of all sizes.

Since his legs didn't seem to be very convenient, he had some difficulty walking.

Seeing this scene, Meng Lang hurriedly walked a few steps, came to the old man, took the luggage cart, and said with a smile: "Old man, let me help you!" ”

Hearing this, the silver-haired old man looked up and saw a tall, handsome, sunny young man looking at him sincerely.

I estimated in my heart that the other party didn't look like a bad person, not to mention that he didn't have anything of value on him, so he thanked him very simply: "Thank you, that troublesome young man!" ”

Meng Lang said politely, "The old man is too polite, in a foreign country, we Chinese people should unite and help each other!" ”

"Yes! Alas, old man, the body is useless. The silver-haired old man sighed with a slight gasp.

"I see that your old body is still quite strong, at least you can go abroad alone."

......

Soon after helping the old man check in his luggage, Meng Lang's flight also began to check the license and board the plane.

When he got on the plane, he found that the seat number of the silver-haired old man was actually next to him, which was really a kind of fate!

After the two exchanged pleasantries, Meng Lang also learned that the old man's name was Li Weidong, a name that was very characteristic of that era.

He used to be a brain specialist in a major hospital in the capital capital, but now retired at home, visiting his daughter who married a foreign country.

"Who are you, little brother?" The old man surnamed Li talked to Zeng Yi, it was a long road, and it was not bad to have someone to chat with.

Meng Lang replied: "I am from Quang Nam Province. ”

"Quang Nam? This is a good place, the mountains and rivers are beautiful and clean, the climate is pleasant, and there are many cultural landscapes, such as Wenhua Pavilion..."

Old man Li seems to be very familiar with Quang Nam, and the names of places everywhere are like treasures, and he has said all the good places in Quang Nam Province.

"It's okay, I don't feel anything after staying for a long time."

Meng Lang smiled and nodded, then pondered for a while, and took the opportunity to ask, "Old Li, the kid wants to consult a brain question, I don't know if it's okay?" ”

Li Lao smiled, maybe when it came to his own professional issues, he was quite complacent, and said: "Hehe, if you want to ask, you can ask, don't dare to say anything else, the old man still has some insights into the human brain!" ”

Meng Lang first thanked Li Lao, then organized his language, and asked politely: "Do you say that there are some new types of cells in the human body, such as the brain, that have never been discovered?" ”

"That's for sure!" Old Li still had a smile on his face, and said with great certainty.

"With the development of science and technology, all kinds of high-end inspection equipment are becoming more and more advanced, and it is possible to observe details that have never been observed before."

"For example, in the past, the magnification of 1,000 times was already the limit, but the current electron microscope is not only 10,000 times magnification, 100 million times!"

Li Lao paused and continued: "There are about 200 kinds of human cells known to human beings, but some time ago, foreign scientists discovered a new type of cell in the brain that can erase memory. ”

"By controlling this cell, you can even choose to permanently erase any part of your mind!"

Meng Lang sighed: "Erase memories? Doesn't that mean that people in the future will be able to selectively delete memories in their brains just as they delete data from their computers! ”

Li Lao nodded and said, "Theoretically, yes!" Therefore, it is certain that there are new cells in the human body that have not been discovered, and in fact, although there are not many such discoveries, they still happen from time to time in the scientific community. ”

Meng Lang continued to ask, "Then are there any cells that are black?" ”

"Black?"

"Forgive the old man for being lonely and unheard, and I have never heard of black human cells!"

Li Lao shook his head and asked again: "Xiao Meng, where did you hear this argument?" In today's society, there are too many people who dare to claim to be experts when they are swaying with half a bucket of water, so don't listen to some things that don't make sense. ”

"Well, a few days ago, I saw a few netizens on a forum discussing the issue of cell color, and I clicked in and took a look at it out of curiosity. You're always an expert in this area, and I'm just going to ask you for advice. ”

Meng Lang found a reason to fool the past.

But he didn't dare to tell the situation in his head.

Although technology is now highly developed, a single hair and a drop of blood can obtain a person's complete DNA chain, and there is no nonsense about taking people to slice and study, but there is nothing wrong with being careful!

And it's impossible for him to tell his secret to a stranger he has just met!

"Elder Li, do you say that there are some cells in the human body that do not need human energy? It's like... It's like it exists on its own! ”

Meng Lang organizes the language, and since he is not a graduate of the relevant life sciences, he is also a little hesitant to consider the choice of words.

"It's impossible!" As soon as Meng Lang's words fell, Li Lao replied without hesitation, "The cells in anyone's body must participate in the metabolic activities in the body!" ”

"They need oxygen, protein, sugar, and trace elements to sustain their vital activities."

"Even if it is some germs that invade the human body from the outside world, they still need nutrients in the human body to survive!"

Meng Lang pondered for a moment, suddenly thought of another possibility, and continued to ask: "Is it possible that there are some cells that cannot be detected with current technology?" ”

Li Lao pondered for a moment and said: "Theoretically, there is such a possibility, assuming that there is some kind of life level smaller than an atom, it will not be detectable with the current technology of human beings. ”

"In the vast world, who dares to say that what they know is correct! Just like ancient people would not believe that the earth was round, and no one would have known that there were cells in the human body before the invention of the microscope! ”

Li Lao sighed incomparably, his cloudy eyes revealing a trace of heat.

Perhaps it is precisely because of the enthusiasm of people like Li Lao to explore the unknown world one after another that there are all kinds of amazing scientific and technological means and amazing discoveries in the world!