11 traits inherited through genetics

Although research in the field of genetics advances rapidly every day, scientists, strictly speaking, have still not been able to determine exactly which physical and psychological characteristics we inherit from our parents and grandparents and which ones we acquire in living with people and the environment. environment in which we live.

O incredible.club presents, in this post, the results of some researches that show what, in fact, is transmitted through genes.

Even if there is not only one ‘impulsivity gene’, some scientists are certain that this character trait can be hereditary. Children of impulsive parents are more predisposed to the same type of behavior. The influence of the environment cannot be ruled out here: the child sees how both his mother and father behave and copies them. But the genetic component is indeed very present.

American scientists Laura Bevilacqua and David Goldman carried out a study in which they found several alleles of different genes that can affect impulsivity.

Hypersomnia (excessive daytime sleepiness), insomnia or parasomnia (different sleep disorders) are conditioned by our genes. Of course, drowsiness or insomnia is often caused by circumstances, such as stress or nervousness on the eve of an important event. But if this state accompanies you throughout your life and not momentarily, it means that genetics definitely plays a big role.

Scholars claim that some people are aggressive not just because of their surroundings or poor education. They managed to find a’warrior gene🇧🇷 what causes an individual to be predisposed to aggressionalways prone to act combatively.

Recent research suggests that, perhaps, this discovered gene makes a person not more aggressive, but more sensitive to their own interests, which obliges them to be more incisive. And this can already be perceived by others as aggressiveness.

The sneeze reflex due to exposure to light affects about a third of the world’s population. It manifests itself with a sudden sneeze when the retina of the eye is irritated by a strong light.

It has already been discovered that this trait is also transmitted genetically🇧🇷 However, in 2010, a group of specialists in genetics led by Nicholas Eriksson, from the DNA testing company 23andMe, in California (USA), studied the genomes of 10 thousand clients of that company. As a result, they managed to isolate 2 genes that are responsible for the light sneeze reflex.

Clinodactyly is a defect in the development of the fingers and which often manifests itself in the curvature of the little finger. Scientists believe that this trait is passed on to children genetically.

In cases where the finger is too crooked, surgery will help to correct the situation.

Very often there are 2 types of earlobes: glued together and separated. In the old days, this physical feature was considered a symbol of dominant and recessive inheritance. But scientists have discovered that there are also intermediate types of lobes. And their formation is also influenced by genes.

The shape of the earlobes is also genetically inherited.

The ability to adapt to rarefied air, characteristic of high altitudes (from about 3 thousand meters) is also genetically transmitted. In a person who has spent his whole life at sea level and suddenly climbs the mountains, red blood cells (responsible for transporting oxygen) increase. A large amount of red blood cells makes the blood sticky, which can increase the chances of heart disease. Over time, the so-called chronic mountain disease develops.

In most Sherpas (inhabitants of the region close to Mount Everest and who generally act as guides on expeditions), the body copes with the lack of oxygen without negative consequences for its cardiovascular system. The same is true of peoples who live in the Andes.

It is this adaptation to altitude that is genetically conditioned.

Several academics focus their studies on long-lived people, with the intention of determining what influences life expectancy the most. The results of several studies have shown that these people have few things in common, such as profession, economic level or education. However, they have some similar characteristics between them. Many do not smoke, do not suffer from obesity and are able to handle stressful situations well. Furthermore, the majority of very long-lived people are women.

It is also known that the brothers and sisters of the oldest old, in general, live longer, even if they don’t lead a not so healthy lifestyle. Illnesses typical of the elderly (such as heart disease or diabetes) appear later in older people than in older people. And it is this aspect that demonstrates the genetic origin of a long life.

It may sound a little strange, but genes are also responsible for how and how much a person sweats. However, experts have not yet been able to determine the exact location of the gene responsible for this.

Sweating when playing sports is normal and common in everyone. But if you sweat constantly, regardless of the weather or physical activity, then most likely you have received a ‘gift’ from your parents. Also, it could be a symptom that you suffer from an illness, so it’s good to see a doctor!

Myopia studies have revealed that this condition can indeed be passed down from generation to generation. Generally, children of myopic parents are more predisposed to developing myopia than other peopleeven if scientists do not deny that myopia can also develop through the environment, that is, to light and other factors that influence the quality of vision.

A person’s body mass index (BMI) largely depends on genetics. Nor can one deny the influence of the environment (stress situations or lack of physical exercise), but some scientists claim that up to 70% of the differences between the percentage of fat of different people is attributed to their genes.

It is clear, a person with unfavorable genetics will be more predisposed to obesity. But that doesn’t mean you should shrug your shoulders and completely neglect your body. More often than not, if a person is healthy, weight can change by following a simple rule: burn more calories than you consume.

A good example of the action of genetics is the actor Jonah Hill, who, like his sister, is prone to being overweight, even if, sometimes, for different roles, he is forced to lose weight significantly.

Even if you inherited some negative points from your parents, don’t be discouraged. Despite the obstacles to getting around our unfavorable physical and mental characteristics, the influence of our surroundings can help whenever we go to the doctor and adopt a healthy lifestyle.

What have you inherited genetically? Share with us in the comments!