The gene affects how you choose

American scientists discovered that genetic engineering affects the subjects we choose to be friends and that people are often linked by their bad habits but apart from each other because of their virtue. .

According to the Telegraph , scientists believe that we choose friends in part because of their genes, especially those who have a tremendous impact on our behavior . However, sometimes friendship can be born in the " unsatisfactory attraction " or " cowardly sniper, code ".

So, although owning genes makes you easy to drink, it can make you close to people with similar personalities, but DNA that is associated with a relaxed personality is more likely to cause conflict with others. object of the same personality type.

The US team of scientists led by Dr. James Fowler of the University of California in San Diego used data from two major health studies to understand genetic relationships with friendship.

They identified genetic markers, or genotypes, in six specific genes and considered their frequency in friends.

Researchers have found two good examples for " superstition " , "code sniffing " and the case of " seal attraction ".

The first case involves a variant of the DRD2 gene associated with alcoholism. Those who possess this DRD2 genotype tend to be associated with subjects with the same genetic signature. People who lack this genotype are also more likely to be friends with subjects who are not interested in alcohol.

" It is not difficult to imagine that people who do not drink alcohol can actively avoid alcohol worms, or alcoholics may be attracted to environments where people who are not addicted to alcohol often dodge. avoid, "quoted the article published by the American team of researchers.

A less opposing association was discovered in people with the CYP2A6 gene associated with an "open" personality. In this case, those who own the genetic signature often prefer to be friends with individuals without it.

The findings of the study are significant because it also considers the trend of forming " local " friendships in the same geographical area of ​​people.

Having friends who possess the same genetic structure can increase the impact on personality traits. For example, someone who is sensitive to alcohol may be addicted to alcohol under the influence of genetics. Even so, he or she can be influenced by selected friends, have the same genetic characteristics and life revolves around a cup of wine.

Human evolution, in some ways, has been formed through the interaction between genes and friendship choices. " The human evolutionary environment is not limited to the physical and biological environment, but also includes the social environment, which itself can be an evolutionary force, " the team reports.