After more than 400 million Human life analysis revealed that the influence of genes at the age is significantly lower than the previously calculated coefficient. The initiators of the study believe that without the inheritance or environmental value there is another factor that is not yet widely considered, writes sciencealert.com.
What is the determinant of life span? Ogi's choice. When choosing partners and similar thinkers, it turns out that we are transmitting cultural and genetic characteristics related to the expected lifespan, such as the transfer of property owned by us or the social and economic status.
"Human genes speak a lot about biological processes that are related to aging, but inheritance in life is not that significant," says Graham Ruby, a researcher who led the study.
Explaining how traces go through generations, scientists determine succession. This measure also shows how the property is transferred, such as life expectancy, changes over time and affect genetic and non-genetic differences. This other may include a way of life, a socio-cultural context, unforeseen circumstances, and so on.
The results of previous studies show that the expected life expectancy of the person is 15-30%. the heredity was determined, but the authors of the new study using Ancestri, an online source of genetic data, claim that this factor is too high.
"The origin has managed to carry out a more detailed analysis because we could use a larger set of data. The authors of the previous studies did not have such opportunities," said one of the participants in the study group.
In order to analyze the data as close as possible, the researchers selected a large number of relatives and paid special attention to 400 million. people born in KSIKS and KSKS centuries All had a relationship between parents and children or spouses.
Developing a data-based model, the researchers observed an unusual and previously unregistered regularity. It turned out that the life span of spouses is very similar – more than brothers and sisters whose genetic heritage is much more similar.
Yes, of course, it can be due to the fact that spouses live in the same environment. However, some data encourage another reason.
It was discovered that ships (spouses and sisters), as well as first-degree relatives and spouses of spouses, although not related to blood, and also not living in the same environment, also survive a similar number of years.
Starting from the study of the length of life of other distant spouses, such as uncle, aunt and relatives and half-sisters of the first line, the researchers noted the same regularity, which is in contrast to the conclusion that the lifespan on both sides of the family tree is similar.
Accordingly, data show that in addition to genetics and a common living environment, there is also a third factor determining the lifetime – a partnership of similar persons. This is a case where there are quite a number of opportunities for a partner similar to that of voters.
"The partnership of similar people in this respect is important because the characteristics that many partners associate with factors determining the longevity (or vice versa)," says Ruby.
This does not in any way mean that people are awarded with a six-dimensional sensation, which allows them to know in advance how long their partners will live.
However, according to scientists, people are really not willing to choose their own partners, and this similarity is usually genetic and sociocultural, and the factors of scientists, as well as news, are inseparable from longevity.
Simply put, for, for example, a rich life leads to longevity, while rich people want to marry with less wealthy people, the lives of wealthy family members are automatically similar.
The same goes for genetic traits. Therefore, if high people choose high spouses and height affect the life expectancy, they will be able to see the same regularity.
In terms of the importance of similar partnerships, researchers spent 7% on their lifetime. influencing it, which is half of what it was thought to be so far.
Therefore, the longevity of the gene, obviously, is not as common as we imagined.
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