9 Interesting Facts About How Genes Affect A Person's Nature And Fate

Date February 21, 2018 13:32

Genetics is a relatively young area of science that hasn't yet been studied thoroughly, despite the fact that scientists have already managed to make many discoveries and find answers to the fundamental questions concerning human health.

We are all well aware that a human being inherits a lot from their parents and relatives, even across generations: Appearance, characteristic traits, talents and way more interesting things such as the genes of happiness or laziness. We have collected a few amazing facts that will help you see the fascinating world of genetics from a different angle.

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1. Fear and negative life experience

People tend to think that self-preservation instincts are something that our parents instill in our nature while they are bringing us up. However, specialists claim that negative experience can be inherited through genes, as well.

The most famous research studies in this sphere are the ones carried out by Atlanta University scientists and their colleagues from Emory University Medical School. In each study laboratory, mice were injected with fear before the smell of acetophenone and cherry respectively. The fear was transferred to their descendants, some of which were artificially conceived.

2. Laziness

For most of us, laziness is an ailment. Naturally, everyone needs rest, but public opinion is somewhat different when it comes to people getting pleasure from lying on the couch for hours on end, for example. Recent studies have shown that this kind of behavior is not a consequence of a poor upbringing, but rather related to whether you have a certain set of genes.

3. Driving skill

Though almost everyone has a driving license nowadays, some people drive with a virtuoso grace, while others remain inexperienced regardless of everything. Even a thorough knowledge of driving rules doesn't guarantee that the driver is able to master the chain of genes that stimulates the cooperation of memory, sense of direction and quick reactions to the smallest changes in a situation. It turns out that about 30% of people shouldn't take on the responsibility of driving at all.

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4. Happiness

London Health School scientists have recently discovered the 5-HTTLPR gene responsible for serotonin production, which is the very thing that affects a person's sense of happiness or unhappiness. This substance determines our mood and the more it flows to the nerve cells, the more optimistic and benevolent we become.

It turns out that there is a so-called 'elongated' variation of the above-mentioned gene. According to scientists, those who possess the latter are, on average, twice as happy as other people.

5. Intelligence

In many aspects, genetics also regulates mental abilities, which is yet another sphere of human development. We all know that nature usually rests when it comes to genius children, however, we don't always understand the meaning of this idea. If a person's body has the KL-VS gene stimulating the synthesis of the Klotho gene, discovered by California University scientists, then their IQ level is considerably higher than the average.

Also, memory and the ability to accumulate knowledge are regulated by the activity of its antipode RGS14, thanks to which some people have a low threshold of learning capabilities.

6. Life in the Highlands

Anyone who has ever been in the mountains knows that the higher up you go, the harder it is to breathe. Lower atmospheric pressure and higher air rarity contribute to a decrease of hemoglobin level in the blood, as it is saturated with oxygen slower. Nevertheless, there are people who constantly live in such conditions and don't experience discomfort.

For example, in the genome of Tibetans, there is an allele of the unique gene EPAS1, which is not possessed by any other nation. Scientists think that this gene increases hemoglobin levels in the blood. Therefore, it's highly possible that other mountain people have something like this in their genome.

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7. Music preference

In 2009, experts at Nokia studied 4,000 pairs of twins. The study revealed that the younger the person, the more intense his genetic disposition to this or that music direction is. Only when a person reaches the threshold of 50, does his music taste become more dependent on the influence of the environment.

8. Optimism and pessimism

It turns out that our genes also program our positive or negative attitude to life. Michigan University scientists have discovered that there is a connection between the concentration in the brain tissues of U-type neuropeptides- the higher their levels, the more positive our perception of our environment and everything going on around us.

9. People with blue eyes can be considered relatives

All the shades of iris cornflower blue are the result of the HERC2 gene mutation which led to a decrease in melanin production. It is thought to have originated in the Middle East about 6-10 thousand years ago and spread via inheritance. That's why there is an opinion that all blue-eyed people have some relative connections.

In spite of the fact that the first genetic experiments were carried out several millennia ago when a selection was born, this sphere of science has been studied very little. However, we hope that scientists will regularly make scientific breakthroughs and give us new facts and discoveries that will help each of us understand human nature better.

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