According to historical records, I believe it is not unfamiliar to everyone that Qin Shi Huang sent people to look for the medicine of immortality. Qin Shi Huang did this also mainly to extend his life span and continue his great cause of unification of the world. He wanted to find this medicine at all costs, but his hopes were eventually dashed.
In the Journey to the West, all kinds of demons and monsters choose to eat the flesh of the Tang Monk in order to live forever, and it is said that in addition to a great increase in power, it can also extend life. All these are rumors, the Tang monk is also a human being, is his meat and normal people have a difference? In fact, most of these claims are rumors of people and there is no scientific basis to prove it. The reason why people choose to believe in its existence is probably life support.
From ancient times to the present, human beings have been very small in front of life, and simply cannot withstand the trials and tribulations of life. After all, the medical environment at that time were quite poor. Looking back at the current, in the scientific level, medical facilities are very perfect basis, why human beings can not realize the wish of immortality? Why can't we skip the natural laws of life? But only through some health care, or medical means to prolong life. Scientists have also expressed their views on this, the next let us look at how scientists explain, and what methods are used to prove.
At first, they wanted to dig into the problem through a macro point of view, but they found that human life is the same as flowers, plants, insects and wood, to a certain period of time will go through this link. Organs will age and not be able to carry out normal movements are all human nature, so that the final end of life. Even with the unprecedented development of human infrastructures, the status quo of organ death can never be changed. So the macroscopic approach just gives humans a clearer understanding of the process from birth to death.
Until one day, scientists used the microscopic approach, and the main idea was to extract the bogeyman that made human cells slowly grow old, which turned out to be chromosome micro-ends. So in the field of science, some people have come up with this telomere doctrine, and scientists are also thinking that the DNA in the cell can not be replicated in the process, resulting in the loss of until death.
Not only this experiment, many experiments have proved that the length of life is linked to this telomere. When the cell divides more often, the telomeres will decrease and then fail to produce new cells. Maybe this is the reason why humans can't live forever so far. Solve this problem and maybe humans can really live forever.
Overall, even if we find the reason why we can live forever through microscopic methods. But ultimately, it can not be realized, after all, at present there is no way to determine whether it is only affected by this factor. Even if in the future, after reaching this technology, the idea of human immortality can be satisfied, but I think this is against the laws of heaven, not in line with the ethical development.