In the eyes of many people, all happiness seems to be frozen in 2019. Since entered 2020, it feels like the earth has fallen into the quagmire of "many disasters and many difficulties". In this case, many people sigh that it may be a luxury to want to die naturally in the future.
Now the new crown epidemic is still raging around the world
So, how high is the probability of a person naturally dying of old age? Data released by the Bureau of Statistics may disrupt your cognition.
The probability of natural old age and death
We often say "birth, old age, sickness, death, life is normal". In fact, it is not just people, but everything in this world follows this law . However, no one can be ruthless than plants and trees. Therefore, when we face these things, we will inevitably feel sad or afraid.
Sometimes death comes very suddenly, many accidents can kill people, making people feel that everything is controlled by fate. , especially in the current era when natural disasters are becoming more and more frequent, the threats our lives face seems to have become more .
0 The Luding earthquake on September 5 has claimed many lives
So, does this mean that fewer and fewer people can die of old age naturally?
According to the relevant data released by National Bureau of Statistics , The death toll in China in 2020 was about 9.983 million , of which the majority of people died of various diseases, , for example, 25.43% of those who died of various malignant tumors accounted for 25.43%.
In addition, due to the spread of the new coronavirus, the number of deaths from due to respiratory diseases has also surged.
Schematic diagram of the number of new crown deaths in various countries around the world
In addition to death due to illness, the proportion of deaths due to external reasons in statistics is 5.6% . Generally, we call this type of death accidental death . , such as car accidents, drowning and other factors, all have the probability of death. After putting aside these, you can roughly draw the proportion of natural deaths, which is only about 1.43%.
This means that among the 100 people, only 1 person in can die because of his age. It is that naturally dies from old age. The rest will die early due to various reasons before reaching a certain age node.
It turns out that natural old age is also a very luxurious thing to expect
This data may have subverted many people's perceptions. After all, in our eyes, in today's advanced era, it seems very easy to want to die naturally, but they don't know that the probability is very low.
This is why many researchers pay great attention to centenarians, because from a certain perspective, is the lucky one among billions of people .
Destiny is one of the best endings of life
It is worth mentioning that some people may say that the boundary of "old" of in natural old age and death is in what is the limit of ?
According to scientists' observations, overall, the aging process of people is actually the process of universal aging of cells in the body . The longest-lived person currently appears is Jenny Louis Kalmante from France. She lived to be 122 years old, so many countries believe that the ultimate life span of human beings is around 120 years old.
The famous American aging research expert HayflickL, according to the lifespan of human embryonic lung fibroblasts is 50 generations. The new cells produced by each division can survive for 2.4 years, then die and continue to divide the next time. Multiply the two numbers and calculate that the lifespan of a human is 120 years.
Kalmante with excellent physical condition
In addition, China's " Huangdi Neijing " also has the saying "I will live forever, and I will leave after a hundred years" . It can be seen that human lifespan can reach a hundred years.
Although it is not a question for everyone to live to the limit of 120 years old, is still no problem for to set the age of natural aging around 100 years old.
However, now when people live to the age of 60 or 70, various diseases of come to their door, and the cancer population has become younger and younger. In this case, "naturally old and dead" seems to have become an unfulfilled dream.
Cancer is one of the diseases that seriously threaten human life
You may be puzzled by this, because not only the living conditions are better now, but even the medical treatment is much better than before . Logically speaking, with the blessing of these factors, the probability of a person's old age and death naturally should be higher, but why is it getting lower and lower?
Next, let’s talk about what factors affect human lifespan. Are long-lived people really just lucky?
Schematic diagram of changes in average life expectancy in my country
Factors affecting human lifespan
In everyone's mind, what will affect human lifespan?
Some people may say it is a gene, and some people may say it is money. In fact, there are many factors related to , and more often they are of combined with .
Longevity is not easy
First of all, it is the gene that everyone comes with. Scientists call it Longevity gene .
They have collected basic information about several centenarians and found that there are indeed some genes different from ordinary people in their bodies. It should be noted that the longevity gene does not refer to a certain gene, but refers to certain genes with other functions, which also takes into account the advantages of longevity .
At present, genes that have been proven to be related to longevity include forkhead transcription factor (FOXO3a), cholesterol ester transfer protein (CETP), etc.
study shows that CETP is a protein related to lipid regulation. Analyzing the polymorphism of 213 long-lived elderly people over 95 years old and their 216 offspring found that the I450V locus of the CETP gene is significantly related to longevity.
gene does determine the lifespan of humans
followed by life state and lifestyle . Under the increasing social pressure, people's irregular diet, work and rest will affect their lifespan .
Especially nowadays, the foods that people consume every day are high in oil and high in salt, and they don’t have time to exercise to consume. In this case, the obesity rate of people is getting higher and higher, and and will cause many complications when obese.
Schematic diagram of obesity complications
Of course, how to live, actually depends on economic .
People with high income levels will not only put a lot of thought into their diet, but also care about their exercise status. However, for people with low income levels, it is not easy to fill their stomachs and live hard. It is obviously impossible to put forward any quality requirements for their living standards.
Analyze the difference in life expectancy between 140 million people in the United States from 2001 to 2014. The average life expectancy difference between the richest 1% and the poorest 1% has reached 14.6 years, and the regional differences are also very obvious.
Exercise is one of the best ways to extend your lifespan
In addition, there is Mood is also very important. Generally, people with stable emotions and active life have a longer life. has a good mentality and can reduce the risk of death by at least 20% .
In this way, smiles and ten years of youth are really not an exaggeration . A healthy mindset is as important as the body.
Schematic diagram of the impact of long-term anxiety on the human body
Finally, it is the impact of environmental deterioration . Although people's living standards have improved now, they are often obtained by sacrificing the environment. Under this situation, the degree of environmental pollution is becoming more and more serious. In severely polluted areas, human life expectancy is significantly affected.
Take air pollution as an example. has been living in areas with severe smog for a long time, or is exposed to air pollution. . Death will indeed come to you quietly.
Schematic diagram of harm to humans by air pollution
Previously, a foreign research team used the regression model to evaluate the exposure of pollutants in residential areas. The results of show that for every 5 μg/m3 increase in PM2.5 concentration, the mortality rate caused by natural causes increases by 7% .
Generally speaking, there are many factors that affect people's lifespan, among which the environment is the basis for our survival.
It is no exaggeration to say that the impact of changes in environment on the probability of natural old age and death is the decisive role of in in . Because scientists have observed very early that some villages that are rich in long-lived elderly people are often treasures with "beautiful mountains and rivers", and the natural environment is very good.
Death diagram related to air pollution
It is worth mentioning that although the impact of the environment is inevitable, scientists have been looking for ways to extend human life span. Among them, "genetic science" is their most concerned area .
The mystery of longevity in gene science
When medicine entered the microscopic field, people discovered many surprises, because gene is the key to regulating various functions, This means that if the genetic problem is overcome, then a hundred years old is really not a dream . I am afraid that the probability of natural old age and death will be further increased by then.
What is currently highly praised is the theory related to telomeres. Most scientists believe that telomeres are the key to mastering cell aging .
Teleomere is a repeat sequence at the end of the chromosome
Problem is that telomeres will become shorter as they get older, so scientists try to "retain" it and let it exist for a longer time to help humans achieve longevity.
Of course, some people sell medicine and products everywhere under the banner of this kind of research, and they keep saying that it can make people live longer. For this kind of thing, you must not be fooled. The desire to live a long life is understandable. , but according to current research, there is no magic medicine that can really "extend lifespan" .
The important thing is to spend every day fulfilling and meaningfully
really want to live longer. still needs to start with from life, diet, mentality, etc., and it requires long-term persistence to achieve results!
