Birth, Aging, Sickness, and Death is the unchanging law of human society. In history, there are always a group of people who want to pursue immortality, but they all end up in failure.
Birth, old age, sickness and death are the norm
What exactly is the reason that humans cannot live forever? Scientists say: "Humans are just working on genes."
The reason why
In ancient times, people believed that birth, old age, sickness and death were controlled by gods, "The King of Hell wants you to die in the third update, and will not leave you until the fifth update." Although superstition is undesirable, you can see the irreversible of human death.
However, after establishing great achievements, the emperors and generals wanted to break the shackles of death and achieve immortality. The most famous of them is Qin Shihuang went to Penglai Immortal Island to seek immortal pills.
Qin Shihuang Penglai seeks alchemy
Can people really achieve immortality? After the development of modern science, scientists finally discovered the secret of birth, old age, sickness and death in human genes.
There is a structure called telomeres at the end of the human gene. Telomeres belong to the extension of the gene, controlling the division of cells and the sequence of the gene.
Previously, people believed that human death was related to cell division. After the cell divided to a certain number of times, it stopped functioning, and humans faced death.
So what organ is controlling the division of cells ? At the beginning, people believed that cell division was an autonomous behavior .
Cell division
Later studies found that it was telomeres that controlled the cell division changes.
Whenever the cell divides once, the telomeres length controlled by will decrease. When the telomeres length is zero, the human genes will become extremely confused, which means the arrival of death.
In order to prevent premature death of humans, a substance called telomerase is produced in telomeres.
Temolecular enzyme can repair and compensate telomeres . The reduced part of the telomeres can be repaired by telomerase so that humans can live so long.
Telemolecular enzyme internal details
In the process of human growth and development, what role does genes play in ? Why do we say that humans are working for genes?
powerful gene
In fact, many human characteristics have already determined when they become fertilized eggs. Genes play a decisive role in the birth and development of life.
Human reproduction requires the combination of genes between male and female, so as to produce fertilized eggs. is a combination of gene rearrangements and combinations. gene guides how fertilized eggs develop into embryos and what kind of embryos develop into.
The formation process of fertilized eggs cannot be separated from genes
When the fertilized egg becomes a baby, the gene continues to guide people's growth and development . Which parts should grow and which parts cannot grow are all determined by genes.
It is because of gene differences that humans appear so different.
Is it possible for humans to disobey the choice of genes?
The answer is yes. Nowadays, technology is so developed, humans can naturally disobey the choice of gene and become what they want, but this comes at a cost.
For example, if a person is not satisfied with his face shape and wants to have plastic surgery, this can be achieved. , but the sequelae brought by plastic surgery are also very large.
gene also determines the appearance of a human
This is the consequence of disobeying the normal direction of genes, and there is no need for humans to disobey their own genes.
Because under the guidance of its own genes, most of the body structure of is suitable for its own development , which also gives humans an illusion that genes do not control people, but obey humans' wishes.
But in fact, the gene may not follow human wishes at all. For example, when you want a pair of long legs, the gene evolved into small short legs . Small short legs do not affect daily life, so people naturally don’t care.
Everyone wants to have long legs
Since genes have such powerful control power , it is also possible to enable humans to achieve immortality, why are genes unwilling to allow humans to be immortal? What is the reason for
? Let the gene choose humans as their "worker"?
is the reason for working in genes
In evolution theory , , , , , , and this evolution has the characteristics of seeking profit and avoiding harm.
So, is the gene that makes human update in order to become better?
Darwinian evolution
Modern human genes seem more advanced than organisms in nature, and the arrangement and combination of genes are also more rigorous and complex.
This is what humans call advanced gene , but you should know that in ancient times, human genes were the same as those of natural species. It was because humans kept updating and changing, species development, and genetic changes had the current genes.
If humans achieve immortality, there is no need to pass on genes, and or the desire to pass on genes will become very low .
After immortality, there is no need to pass on the gene
At this time, it is not in line with the interests of the gene itself, so there are certain restrictions on the lifespan of human beings.
In addition, immortality is not conducive to the development of an species . If this species cannot make changes in genes for a long time, then the genes of this species will weaken and eventually be eliminated by nature.
is like computer software. Only by constantly updating can we better serve users.
Of course, there will be risks in the process of gene renewal and replacement. Species may degenerate, and these are all subject to the consequences of the species and genes.
gene may break or degenerate
Once the species disappears , it means that the gene will be lost in history forever.
It is worth mentioning that in-kinship methods are not in line with the interests of genes.
Because inbreeding cannot promote the binding of different genes, reduces the possibility of gene evolution. In order to prevent human inbreeding, genes have severely punished people who are inbreeding.
There are also in nature, which splits gene reproduction and self-insemination methods . These reproduction methods often have serious consequences because this is not in line with the interests of the gene.
Inbreeding is not recognized Another reason why the gene does not want humans to achieve immortality is also because it wants to achieve diversity of species to increase the risk resistance of genes.
Humans were "family" with chimpanzees 5 million years ago to 8 million years ago, and humans share the same gene with chimpanzees.
In order to continue the species, chimpanzees have grown into a large number of ethnic groups. These ethnic groups live in different environments, and the same gene produces different species .
Many years later, human ancestors differentiated from chimpanzees , forming two independent groups.
Humans were the same as chimpanzees
If either of the chimpanzees and early humans were extinct, the genes would still exist in the other party, which is the so-called risk resistance.
In this way, as long as the number of species is large enough, the genes have enough time to evolve better and make the species stronger.
At this time, some people may ask, after so much effort, does the evolution of genes have an endpoint ? If so, what is the end point of gene evolution?
Human and Genes
World-renowned biologist Daojins believes that humans are evolutionary machines, and all living things are fleeting, and only genes are eternal.
biologist Dawkins
When one life disappears, the gene is transferred to another life, and the strong desire for reproduction of the species is also the result of gene mating . The statement of
makes people feel desperate and suffocated . Humans are like slaves under genetic servitude.
Looking at the history of biological evolution , the gene is changing from a lower to a higher form, so is the direction of gene evolution moving towards higher genes?
However, what is lower and higher are just the definition of created by humans. People do not know what the direction of gene evolution is and whether genes have an end point. Where is the end point of the
gene?
is like the emergence of human beings, it is a coincidence of history. Even the birth of the universe has uncertainty . Dinosaurs were born, dinosaurs left in meteorite . Everything was born from chance, everything ended from chance.
More than 99% of all species that have existed on Earth have disappeared. The
gene enslaves humans, which is naturally pessimistic, , but the emergence of humans is extremely optimistic .
As the only higher species on the earth, 's only super intelligent life form , human beings are moving towards an extremely bright future.
Humans are the only higher species
Now humans have parsed the gene chain composed of billions of genomes and discovered the mystery of life and death. It may only be a matter of time before they can get rid of the constraints of genes.
It is possible that humans are the end point of genetic evolution!
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