Seven o'clock in the evening. Zhao Heng returned to the apartment, today Zhao's father and Zhao's mother closed the door very early, during this time, I don't know why, the business is not as good as before, it used to be open until more than ten o'clock, and there was still business, but there were basically no customers at about seven o'clock recently, so Zhao's father and Zhao's mother also came home early.

The family was sitting on the sofa, Zhao's father was watching a war movie, and Zhao's mother was grabbing vegetables in the newly added community, grabbing all kinds of vegetables.

Speaking of this vegetable grabbing group, it is now the favorite of middle-aged and elderly people, especially Zhao's mother, who has been especially keen on grabbing vegetables recently, as if she has found a second job.

No, if it weren't for opening a small shop and stealing the dishes, a family of three wouldn't be able to digest it at all.

"Mom, Dad, let me tell you something." Zhao Heng opened his mouth and said slowly to the second elder. Hearing this, Zhao's father and Zhao's mother both turned their heads and looked at Zhao Heng.

In the eyes of the second elder, Zhao Heng rarely spoke to them in such a very formal tone, after all, with the family atmosphere of this family, in fact, many things don't need to be said in particular.

What Zhao Heng wants to do, his parents are generally very supportive, and what Zhao's father and Zhao's mother want to do, Zhao Heng generally agrees.

So this kind of very formal talk is still when Zhao Heng chose to volunteer after the college entrance examination.

"What's wrong? Son. Mother Zhao rarely saw Zhao Heng speak so formally, and she was a little nervous.

Father Zhao also picked up the remote control and pressed the pause, looking at Zhao Heng.

"Dad, Mom, what are you doing so nervously. All I have to say is that I discussed it with Mannie and found a time to meet on both sides. Zhao Heng couldn't help but smile when he saw his parents being so nervous all of a sudden.

"Harm! You kid, I thought you were going to say something, it scared me. Zhao's mother breathed a sigh of relief, to be honest, she has been watching the news recently, and in the recent news reports, not only have there been a lot of reports on the killing and injury of doctors, but also what virus has broken out in Africa, which looks strange and scary.

No, Zhao's mother began to worry about Zhao Heng, who became a doctor. I went to Africa before, but Zhao's mother was scared and couldn't sleep well for several days.

"That's a good thing, but son, you have to ask Mannie's family if there's anything special about it, the customs of men and women meeting are different in different places, let's stop making jokes." Mother Zhao thought for a moment and then said.

"These things have to be clarified, although our family is not rich and rich, there should still be etiquette." Hearing Zhao's mother's words, Zhao's father also nodded, and rarely agreed with what his wife said.

"Mannie said that there are no special customs over there, and this time the two sides will meet and get acquainted." Zhao Heng said.

In modern society, where is there still so much red tape, of course, there are also people who hold on to the concept of some old sesame seeds and rotten grains, which is another matter.

"We're going to get engaged after we meet." Zhao's mother said with an expectant face, after this engagement, she will get married, and she will have children when she gets married, so that her wish to hold her grandchildren can be realized as soon as possible.

"Let's take it step by step, young people are late now, don't be in a hurry." Zhao's father is not in a hurry, he now has free time every day, and he is also surfing and watching videos with an elderly smart phone, so he still has a little understanding of the ideas of young people.

Especially in the past two years, young people's willingness to marry and have children has fallen to a record low, and it is likely to fall.

In this environment, the son can find a daughter-in-law, and the two of them can still have the willingness to get married, which is already very good, and it can't be forced too much.

"Early knots and late knots are all knots, and if you can tie it early, you naturally have to tie it early." Mother Zhao said with some disapproval.

"Mom, let's meet first." Zhao Heng said. He didn't think about it that much, just mentioned it a little about the meeting between the two parents.

After chatting with his parents again, Zhao Heng returned to the bedroom, just opened the laptop, and was about to start work.

A long-lost voice suddenly sounded in Zhao Heng's mind. 【Ding! After a long period of use by the host, the system has been fully charged and is now ready to be upgraded, is it upgraded?

Huh? Upgrade? Since he got this system, Zhao Heng thought that this system was a mechanical function of picking up attribute experience and then fusing it, but he didn't expect that the system now has an additional upgrade function?

[System, what's going on with this upgrade?] Are there any new features after the upgrade? Zhao Heng asked in his mind.

[This system is an intelligent system, it can evolve on its own, the previous system is version 1.0, after upgrading, the original function of the system to pick up and fuse remains unchanged, and a limit-breaking function will be added] [Breaking the limit?

Zhao Heng asked in surprise in his mind. [Yes, breaking the limit is to break through the current technical limitations, and it can also be said to break through the current technical bottleneck.

The system explained. [What conditions do you have to meet for breaking the limit?] Zhao Heng asked again in his mind.

[Answer the host, when a certain medical technology of the host reaches the peak level of this world, and there will be no breakthrough in a short period of time, then you can rely on the system to break through the technical bottleneck, and the system will detect the medical technology that the host has reached the peak by itself] Zhao Heng heard it, and now he understood, no matter what technology, it will encounter a bottleneck, so he said that Zhao Heng is now, although it is said that it is a fusion of the skills and experience of a large number of elite doctors, but under such integration, there is still a problem, That is, Zhao Heng's highest technical level in a certain field depends on the pinnacle level of this field.

Once you reach this peak level, then it will stagnate. [System, test the technology that can break the restriction on me at present] Zhao Heng thought about it, and gave an instruction in his mind and said.

It took a full ten minutes for the system to respond. 【Ding! After testing, the technologies that can break the limitations of the host are: stem cell cultivation, genetic modification, and nanotherapy.

[Yes, after the detection of this system, the three technologies on the host are currently at the peak level of this world, and the conditions for breaking the limit are met, and the rest of the technologies have not reached the peak level of the world] It turned out to be like this, after listening to the system's answer, Zhao Heng knew in his heart.

Stem cell cultivation and nanotherapy, which is the integration of Professor Li Hongwei and several related professors of the technical experience, in this regard, domestic research is regarded as a curve overtaking, so it can reach the world's most advanced level.

And genetic modification is naturally picking up the technology of Dr. William, and Dr. William can also be said to be the world's most advanced level in terms of genetic modification.

As for the various surgical techniques picked up by the doctors of the East Hospital, I am afraid that none of them can reach the strongest level in the world.

[Host, is it starting to break the limit?] The system said again in Zhao Heng's mind. [Let's get started.] Zhao Heng gave an order, he wanted to know what it would be like after this limit was broken.

In just an instant, Zhao Heng had a feeling of sudden enlightenment, enlightenment, and research for many years in the three fields of stem cell cultivation, genetic modification and nanotherapy, and then, after these three technologies broke through the current limitations, the knowledge and experience presented also appeared in Zhao Heng's mind for the first time.

Whew~ Cool! This was Zhao Heng's first feeling. It's like being stuck in one place for a long, long time, and now it's suddenly unblocked.

For example, stem cell culture, in the past, could only do the differentiation and cultivation of a single type of stem cells, for example, epithelial cells, nerve cells, etc., and could not do complex differentiation and cultivation at the same time, that is, stem cells were used to directly cultivate and differentiate an organ.

But when the technology breakthroughs, Zhao Heng can directly use stem cells to cultivate a complete human organ.

After the breakthrough in nanotechnology, the biggest progress is the breakthrough in nanomedical robots, in the past, only nanomaterials can be used to release drugs in a directional manner, but now, Zhao Heng can create the first generation of nanorobots, and then these nanorobots can enter the human body, through programming, directly reach the lesion, repair local tissues and cells.

The most important thing is genetic modification, although Zhao Heng is still unable to break the limitation of telomerase in genes, so that human beings will not be troubled by lifespan and achieve immortality, but some genetic diseases, he can start to solve them.

Moreover, with Zhao Heng's current genetic modification technology that has broken through the limitations, he can already make a certain amount of directional modifications to human genes, which can not only be used to treat diseases and save people, but also to enhance the human body and achieve some special effects.

This is really a big surprise! Zhao Heng couldn't help but think. originally thought that this was the end of his life, even if he had a golden finger, he could only wait for the technology to improve step by step, and he would improve step by step, but now it seems that he can do more.

At this moment, Zhao Heng couldn't help but burst out with pride in his heart. At this time, the first thing Zhao Heng thought of, and what he wanted to do the most, was to study the expression of longevity genes.

Assuming that we knew our life limit, would it be more reasonable to arrange our time? If someone told you that human genes would change and the average life expectancy would increase by decades to centuries, how would you manage your extra time?

How will society be affected? Just this year, researchers from a medical research institute in the United States published a research paper in the sub-journal of the top international journal Nature.

He said that simply changing the expression of the p26 gene that is ubiquitous in living organisms could extend human lifespan by 20 to 30 percent.

Because many studies have shown that cells can degrade and recycle old, broken and damaged proteins by increasing the frequency of eating themselves, so as to achieve the purpose of prolonging their own lifespan, we call it autophagy.

Of course, the cells eat themselves, not at random, but with a strong selectivity.

This also means that cells are smart enough to recycle waste in a way similar to waste separation.

Then, then different types of "Garbage", transported to the cells

Recycling Center. In the same way, the p26 gene also has the ability to transport discarded mitochondria to the recycling center, so that the mitochondria damaged by aging can be repaired, so that we humans can achieve the purpose of inhibiting aging and prolonging life.

In addition, in addition to the p26 gene, the researchers in the United States slightly tweaked the two gene pathways of the laboratory worm, that is, Caenorhabditis elegans, which extended the life span of this animal by five times.

In Novato, California, Pankaki Kapasi, chief scientist at the Buck Institute on Aging, said their experiments increased the worms' lifespan by a factor of five.

Because such a genetic mutation initiates a positive feedback loop for a particular tissue that prolongs life. Fundamentally, these worms can live to the equivalent of 400 to 500 years of human life.

If this genetic mutation is applied to the human body, it will no longer be a dream for us to live to be 500 years old.

So, what kind of impact will it have when the life expectancy is extended? First of all, as life expectancy increases, so does our wisdom.

After all, the accumulation of experience in eating more salt and walking may enable us to understand and change the world in a way that we cannot imagine now.

Second, we may generate new social structures. Imagine becoming a great-great-great-grandfather living with your children and grandchildren.

Is it worried about whether the offspring is motivated, or is it to enjoy the joy of family? Then, we may have a more stable society.

Because of the extension of human lifespan, the pace of social change began to stabilize, and people began to get used to the current social order.

It has to be said that history is a great teacher, but if we become history ourselves and experience an era ourselves, you may even be written into a book and turned into an immortal legend.

In addition, we harvest additional maturity due to the extended human lifespan. The mistakes made in the past because of the frivolity of youth will be learned from the centuries of growth, or they will suddenly wake up to some difficulties and have a more successful and happy life in the future.

Finally, we will have a more diversified economy. Because there will be different needs of people of different ages of 250 and 50 years old in society at the same time, we will develop many new products and open up new markets.

Zhao Heng also thought that there are also life-prolonging drugs on the market, just like a certain rich man surnamed Li, who spends hundreds of millions of dollars every year to get the so-called longevity injections, of course, these injections will extend the life of 3-5 months at most, which is already extremely remarkable.

For those super-rich, even if it is just to extend their life for a year, I am afraid they are willing to exchange astronomical sums of money in exchange.