However, many people will think, how old is the ultimate life expectancy of human beings? With this question, let's look at the life span of people who are troubled by diseases. Nowadays, many young people are tortured by diseases in their forties and fifties and finally die. I have to say that this is a very sad thing. Of course, everyone's life span is different, long and short. How old can human beings live if it is not because of the torture of diseases?
We can often see some photos of Angie Chiu, the goddess in our hearts, on public media. Many people will say that my grandmother is the same age as her, but she feels much older than her. This is about maintenance. There is a saying in The Journey to the West that the earth god told the Monkey King: "You can live 360 years with a sniff of your nose;" You can live for 47,000 years by eating fresh food! "This is a myth. In fact, it is easier said than done. Only a small number of people can live to 100 years old. According to relevant statistics, the oldest person in the world is up to 146 years old. He is a man named SaPaalmann Soddy Sodimejo. The country with the longest life expectancy in the world is Japan, with an average life expectancy of 83.7 years.
According to the fact that the life cycle of mammals is generally 5~7 times of the growth cycle, the ultimate life span of human beings can be basically calculated in this way. The growth cycle of most people is 18~20 years, so the final life span of human beings will probably be 90~ 140 years. This data has upper and lower limits, but the final result tends to be 140 years old! In other words, if it is not an accident, human beings can live to 140 years old!
Another method is to look at the frequency of cell renewal in human body. If the cell renewal in the human body is higher, the human body will remain young forever, that is, if the cell renewal is slower than the cell aging, the human body will age quickly.
196 1 year, American anatomist Leonardo Hayflick put forward the Hayflick limit. If calculated in this way, a normal human fetal cell population can divide 40 ~ 60 times under normal culture, and the division cycle is about 2~3 years, then the limit life is about 100~ 150. Of course, some scientists have calculated that the ultimate life span of human beings is about 1.25 years old. This is 1.825 "Gompertz's Law of Death" published by Benjamin Gomperts, a talented British mathematician and actuary. He said that after the age of 30, the mortality rate will increase by two times every eight years, and calculated according to this curve.
However, in 20 15, Aubrey de Gray, a British expert in biological gerontology, published a very surprising news, claiming that the life span of human beings was originally 1000. This statement broke the conventional research and aroused the interest of many people in the industry. Is this statement really true?
In ancient China, many emperors had the dream of immortality. Take Qin Shihuang as an example. They tried their best to gain immortality, and finally died in the middle of seeking immortality. Up to now, many people are doing health preservation in order to live longer. Of course, immortality is the dream of many people, but it is a very distant ideal. As mentioned earlier, the country with the longest life expectancy in the world is Japan, with the average life expectancy not exceeding 100 years. Looking at the vast rural areas in China, there are not many elderly people over 85, not to mention those 100!
Not only that, but also some American scientists use the number of cell divisions as a calculation. According to the situation of human cell division, the average human cell will age or die after dividing for 50 times, so through this reasoning calculation, the life span of human beings is about 120 years old. Through reasoning and calculation, so many scientists think that the life span of human beings is above 100, but why are there not many people who can live to 100? This is a problem worth studying!
It is true that there are not many people over 0/00 in China/KLOC-but a while ago, there was a birthday celebration that deserved our attention. This is Arimihan Seyiti from Paikunwu Yila Village, Kumshilike Township, Shule County, Xinjiang Uygur Autonomous Region. According to relevant identity information, she was born on1June 25th, 886 (Guangxu 12). We also want to bless the elderly!
The oldest person I have seen before is 122 years old. This old man directly set a new record again and became the world's well-deserved longest-lived woman! However, she was certified by a world record certification organization called "Flag-raising World Record". Alimihan Seyiti passed this certification in 20 13, and the world record number was 20 130800068, when she was 127 years old.
The limit of cell division times is the limit of human life. Why do cells have a division limit? Because telomerase is a repetitive DNA sequence at the end of eukaryotic chromosomes, it is used to maintain the integrity of chromosomes and control the cell division cycle. This is the most basic knowledge of cell division, but there are many external factors that affect human life span, which can be summed up in two aspects: on the one hand, social factors, including spirit, environment, diet, medical care and so on; On the other hand, it is biological factors, including diseases, accidents and so on.
Its purpose is to tell the other party that the file copy is over, the transmission is over, and the session is closed, just like at the end of the data stream when the file is copied! Telomeres have a similar effect. In order to avoid mistakes in DNA replication, a repeated sequence without DNA information is set at the end. Every time a cell divides, it will be replicated with this template, but the telomere replication will be less each time. When telomere length disappears, cell division will stop! However, under normal circumstances, it is actually a factor of cell division! We know that the story of eagle rebirth is actually promoting cell division, which will eventually make them live for decades! The division of human cells will also affect people's lives!
This mechanism can prevent obvious errors in DNA replication. If telomeres disappear and are forcibly copied, then DNA replication will not know where it ends and it is easy to make mistakes. Simply put, it is to avoid large-scale mutation of DNA in the replication stage and avoid monsters, which denies this possibility from the essence of life. Therefore, with the continuous division of cells, telomeres can't guarantee the structure and genes of chromosomes, so at this time, cells will stop growing and eventually become aging! This is the core that affects life!
I believe many people have seen such a case. In order to live forever, they began to freeze their bodies before the end of their lives, hoping to get advanced technology treatment several years later. Everyone wants to live forever, but according to the phenomenon of nature, this is impossible! Frozen eternal life? It seems unreliable. Only the living frozen authors believe that there is the possibility of coming back to life. The dead frozen body is different from the cold meat in the cold storage. Is it possible to come back to life?
Of course, "frozen resurrection" faces huge technical obstacles. Very, very careful. This technical obstacle may be overcome in 50 years or more, or it may never be overcome. You should be prepared for this. After all, those science fiction novels are just literary expressions, which are different from reality. Secondly, the technical cost of freezing remains is very high, which will bring great economic burden to family members.
Of course, whether "frozen resurrection" can be realized will take several years to know, and perhaps many people can't wait until then!
There are a lot of cell repair technologies on the market now, and it is really impossible to draw a conclusion. ? Scientists also believe that human life can indeed be extended by cell repair, so they also believe that cell repair technology can extend the ultimate life span of human beings to 1000! If it can really come true, Qin Shihuang's dream of seeking immortality will really come true after a thousand years!
Of course, this is just a matter of theoretical reasoning, it's hard to say!
# Science, Mystery and Exploration # # Science is cold knowledge #