The Most Interesting Facts About Our Brain

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The Most Interesting Facts About Our Brain
The Most Interesting Facts About Our Brain

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Video: The Most Amazing Facts About The Human Brain 2023, February
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The most interesting facts about our brain

July 22 is World Brain Day, which was established by the World Federation of Neurology to raise awareness of the importance of brain health. MedPortal has collected interesting facts about how the most mysterious organ of the human body works, which still leaves many mysteries to scientists.

The most interesting facts about our brain
The most interesting facts about our brain

Photo: Robina Weermeijer / Unsplash

The brain works 100%, not 10%

The myth that only 10% of the brain is used is one of the most widespread, attributed to various scientists, even Albert Einstein. According to one version, this myth appeared due to a misunderstanding of neurobiological research in the late 19th and early 20th centuries. There are also many misconceptions that a person can use "unused" areas of the brain and develop superpowers, but this idea is supported by science fiction writers, not the scientific community. Neuroscientist Barry Gordon calls this myth "ridiculously flawed," adding, "We use virtually every part of the brain and they are active almost all the time."

Brain size does not affect mental performance

The human brain weighs from 1000 to 2000 grams, which is an average of 2% of body weight. At the same time, the brain of men is "heavier" than the woman's, on average 100-150 grams more. The question of whether a person's mental abilities depend on the mass of the brain has been a controversial and even speculative issue for a long time. However, there is no scientific evidence for this relationship. So, the brain of Ivan Turgenev weighed 2012 grams, and the brain of Anatole France - 1017 grams. Moreover, the heaviest brain - 2850 grams - was found in a person who suffered from epilepsy and idiocy.

Scientists at the University of Washington found that the mass of the brain of Homo Sapiens, which lived in Africa about 200 thousand years ago, is comparable to the brain of a modern person, but no intellectual breakthroughs happened at that time.

The brain never sleeps

The work of this organ does not stop for a minute, moreover, in a dream, the brain is even more active than during wakefulness. While we sleep, the brain can make decisions, sort memories, build associative connections, including between unrelated things and phenomena, so often the most valuable ideas come in a dream or upon awakening. Mendeleev treated with some irony the legend that he saw the table of chemical elements in a dream, but never refuted it. Theoretical physicist Niels Bohr assured that he created a planetary model of the structure of atoms under the impression from his dreams.

Why do we need to sleep so long every day? The fact is that during the delta phase of sleep, the brain regulates and restores the functions of all organs. The restoration of the entire hormonal part occurs precisely in a dream. So if you want to sleep because your "brain is tired", you are really tired and your entire body needs a reboot.

Early development cripples children's brains

The fashion for early development, when children are taught to read, write, count and speak a foreign language as early as possible, is fraught with serious consequences for the intellect and psyche of the child. According to the director of the Institute of the Human Brain. Natalia Bekhtereva, academician Svyatoslav Medvedev, the human brain is formed before the age of 17, and those areas that are responsible for reading are not yet developed at 2-3 years. Therefore, when a child at three years old is forced to read and count instead of fairy tales, he uses areas of the brain that are not intended for this, and therefore he does it very badly. It's like making a program designed for a modern MacBook run on an old Pentium, says the scientist. In addition, information overload leads to neuroses and more serious mental disorders.

Our brain has a built-in "error detector"

Academician Natalya Bekhtereva was one of the first to make the assumption that there is a certain error recorder in the human brain. Together with colleagues, the scientist treated patients with Parkinson's disease using electrodes implanted in the brain. During these sessions, people were asked to complete various tasks and the reactions of different parts of the brain were checked. Scientists noticed an interesting pattern: for any error at certain points in the brain, the same brain reaction occurred. In our brain, there are populations of cells located in different zones, and they respond precisely to errors. Most people do not even suspect about this mechanism, do not notice how it works (you cannot, for example, constantly record every inhalation and exhalation, every movement of the body). The older and more experienced we get, the more information accumulates in the "error detector".

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