Special correspondent Li Jinliang
Aubrey Gray, an elderly biologist in the Department of Genetics at Cambridge University, believes that aging is also a disease that can and should be cured. He predicted that with the enhancement of drug efficacy, people will be able to cure aging like today's diseases, and in the future, humans may be able to live to 1000 years old.
Aubrey Gray, a biologist at Cambridge University, said
Aging is also a disease.
1998, scientists at a research institute in California, USA, discovered a set of magical genes that can prolong the life span of fruit flies by 30%. This group of genes was later named "Methuselah Gene". Methuselah, a figure in the Christian Bible, is said to have lived for 969 years. Now, a human geneticist who became a monk at Cambridge University in England firmly believes that human beings can live to 1000 years old.
This scientist is Aubrey Gray, a "genetic madman". He boldly predicted that aging is also a curable disease. With the development of medicine, many modern people may live to 65,438+0,000 years old. He even thinks that "future humans" born after 2 100 years are expected to live to 5000 years old.
5000 years old is Gray's bold prediction, and 1000 years old is Gray's firm belief. Gray claims that he has cracked the formula of "human aging" and analyzed seven factors that lead to human aging. If these seven factors are successfully intervened by molecular biology, genetics and nanotechnology, the aging process can be stopped, thus prolonging the life span of human beings to an unimaginable extent.
Controlling cell division can prolong life.
Gray named his gene theory "strategy of ignoring aging" (SENS for short). He put forward seven factors of aging: 1, cell atrophy and deterioration; 2. Malignant reproduction of cells; 3. Chromosome changes; 4. Changes of mitochondria; 5. Intracellular garbage accumulation; 6. Extracellular garbage accumulation; 7. protein interleaving in vitro.
Gray's logic is simple: aging is a mechanical process in which an organism's cells are fixed inside and outside, because of this process, cells die one after another. Even if a person is not sick, 120 years old will still die, because all cells are dead.
Moreover, cells are updated by division, and the time of division is fixed. When this number is reached, the splitting process stops. When cells die, human tissues, organs and even the human body will die. However, Gray believes that as long as the number and procedure of cell division are controlled by technology, human beings can live a long life.
Take avoiding accidents as the top priority.
Gray optimistically predicted that with sufficient funds and support, gene therapy could be successfully tested in mice within 10 years. After decades, you can succeed in people. Most of us will live to see these advanced therapies become a reality.
Gray believes that by that time, the progress of medicine will greatly increase people's life span, and human beings will eventually escape death-unless they encounter unfortunate accidents.
Gray also claimed that the life span of human beings would not exceed 5,000 years, because such accidents could not be avoided in the end.
Therefore, how to avoid unfortunate accidents in the future has become one of Gray's biggest worries. He said: "I will check my bicycle brakes more carefully now than before." When I sit in the back seat of a car, I will always remember to fasten my seat belt, and I will no longer accept invitations to meetings in any dangerous country. "
■ theoretically, you can live to 1.50 years old. The oldest surviving birthday girl: 1.30 years old. India has discovered the oldest person in the world. At least 1.30 years old. If her age can be confirmed, she will be the oldest person in the world, 14 years older than the oldest woman known in China.
? ■ How long can we live? American scientists believe that even with the continuous progress of science, human life expectancy will hardly reach 100 years, at least not in the next century. The average life expectancy of people born in this century is 85 years. In today's world, there are no magic drugs, hormones, antioxidants, genetic engineering and biotechnology that can increase the life span of human beings to 120 years or 150 years as predicted by some people. Experts fully agree that human beings live longer than life, which is nonsense.
? ■ According to records, the person who has lived the longest so far is a French woman named Calmet, who died in 1997 at the age of 122.45. Life expectancy and life expectancy are two concepts. Life span refers to how long a person can live; Life expectancy refers to the average life expectancy of people born in a certain year. The longest life span of human beings is about 125 years old. Even if the most common causes of death such as cancer, heart disease and stroke are excluded, the average life expectancy will increase by at most 15 years, and then people will die of old age. Only when biological researchers find a way to delay the aging process and make this discovery serve all mankind will the next great leap in human life appear.
? ■ How long can we live? How many years can normal people live? Different scholars have different angles of investigation, and the years calculated by different methods are also different. According to the calculation method of cell division number and division period, human life span is the product of cell division number and division period. Since the embryonic period, cells have divided more than 50 times, with an average division cycle of 2.4 years, so it is estimated that the highest life expectancy of human beings is at least 120 years old. According to the calculation method of sexual maturity, the highest natural life expectancy of human beings should be 1 12- 150 years old. According to the calculation method of growth period, the natural life span of human beings is 100- 175 years. According to the calculation method of pregnancy, the maximum natural life span of a person can reach 167 years old. The calculation results of the above methods show that the normal natural life span of human beings should be above 100 years.
? ■ With the improvement of human environmental sanitation and the improvement of public health quality, people's life expectancy is also constantly extending. What determines human life span? At present, the scientific community has reached an understanding that human life span is mainly realized by internal and external factors. The internal cause is heredity, and the external cause is environment and living habits. The influence of heredity on longevity is more prominent in people who live long. Generally speaking, parents live longer and their children live longer. German scientists investigated 576 centenarians in 15 years, and found that the average age of their parents when they died was 9- 10 years older than the average person. American scientists have found that most centenarians have similar genes, especially chromosome 4. Researchers hope to develop corresponding drugs to help people live longer.
? ■ External factors cannot be ignored. Research shows that the key to longevity lies in individual scientific behavior and good natural and social environment. Living completely according to a healthy lifestyle can live longer than the average person 10 years, that is, over 85 years old.
Optimistic technical experts believe that it is completely feasible to extend the life of cells through modern science and technology. However, sober conservatives believe that human life is not a simple cell division, and aging and longevity are the results of multiple genes, levels and channels. Moreover, the human body is very complex, and it is difficult to ensure that genes have changed this place and that another place can function as we wish. In addition, the environmental system we live in is beyond human control.
At present, the average life expectancy of China people is 72 years. On this basis, answer the following questions, add and subtract, and finally you can get your possible life expectancy.
■ 1. If it is male, it will be reduced by 3 years; Female 1 year. 2. Living in an urban area with more than 6,543,800 people, minus 2 years; Living in a small town or rural area with a population of less than 6.5438+0 million, plus 2 years old. 3. Grandparents who live to 85 years old have 1, plus 2 years old; All four grandparents lived to be 80 years old, plus 6 years old. 4. 1 parents died of stroke or heart disease before the age of 50, MINUS 4 years; If any parent, brother or sister has cancer or abnormal heart before the age of 50, or has diabetes since childhood, it will be reduced by 3 years. If you are rich, subtract 2 years. 6. If you graduate from university, add 1 year; 65 years old and still working, plus 3 years old. 7. If you have a spouse and live together, add 5 years; If not, from the age of 25 every 10 years, minus 1 year. 8. If you often work at your desk, you will be reduced by 3 years; If you often engage in manual labor, add 3 years. 9. If you play ball games, swim and run five times a week, plus 4 years old; Twice a week plus 2 years old. 10. If you sleep more than 10 hours every night, then subtract 4 years. 1 1. Often nervous, irritable and impatient, reduced by 3 years; I feel that life is easy and I can cope with my work. I am three years old. 12. If you often feel happy, add 1 year; I often feel unhappy and lost it for 2 years. 13. If you were punished for traffic violations last year, you will be reduced by 1 year. 14. If you smoke, 2 packs a day, MINUS 8 years old; 65438+ 0-2 packs per day, minus 6 years; Less than 1 bag, minus 3 years. 15. If you drink 50- 100 ml of liquor every day, you will lose 1 year. 16. If the weight exceeds 5 kg, it will be reduced by 2 years; /kloc-more than 0/5 kg, minus 4 years; If it exceeds 25 kilograms, it will be reduced by 8 years. 17.40 years old, annual physical examination 1, plus 2 years old; Women over 40 years old, see gynecology 5 times a year, plus 2 years old. 18. If you are 30-40 years old this year, add 3 years; 40-50 years old, plus 5 years old; Over 70, plus 6 years old.
Have you calculated your life expectancy? Don't be discouraged if your results are not satisfactory. From now on, change bad habits, quit smoking and drinking, exercise correctly and live an optimistic life, and your life will be prolonged. The key to life is in your own hands.