6 Misconceptions About The Human Brain

6 Misconceptions About The Human Brain
6 Misconceptions About The Human Brain

Video: 6 Misconceptions About The Human Brain

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Video: Sir Colin Blakemore - Six myths about the Human Brain 2023, February
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It has long been proven that people use 100% of their brains, and the IQ level does not depend on the amount of gray matter - the same Neanderthals had an impressive skull size, but lived worse than monkeys. Let's debunk even more myths from neuroscience: What don't you know about the human brain? 6 misconceptions about the human brain: busting myths! Legend 1. On the dominance of the right or left hemisphere In the early 70s, the New York Times publishes an article about the research of Roger Sperry, which divides people into two types - creative (right hemisphere) and logical (left hemisphere). The author of the interview claims that the former have developed imaginative thinking, empathy and artistry, while the latter have good analytical and mathematical abilities. Subsequently, this statement will be refuted by a dozen studies, scientists will test the winners of the Olympiads in mathematics and programming, but they will not find confirmation of the theory. In 2013, about a thousand respondents will pass tests, allowing them to scan their brain for an MRI - and the version will finally fall apart. This once again confirms that a person uses the powers of both hemispheres, although each of the brain regions is really responsible for its own part of the work. Legend 2. Brain cells are not restored You have probably heard more than once frightening stories about the destructive effect of alcohol on the brain, how a stroke damages cognitive abilities, and an operation to remove part of the gray matter makes a person a vegetable. But not everything is so fatal. It turns out that the human brain is able to recover after the most difficult operations, since the rest of it takes over the functions of the non-working zone and forms new neural connections. In medical practice, six cases are described when neurosurgeons amputated half of the brain in children under 11 years of age, and after a while the functions of the removed half were taken over by the surviving brain structures. As a result, speech, cognitive and motor abilities were fully restored, the children grew up without obvious deficiencies and did not differ in any way from their peers. The recovery of adults is more difficult, but constant training does its job - a person partially regains lost opportunities. Legend 3. Disrupted sleep mode is difficult to correct Healthy sleep is a guarantee of mental and physical health. It is in a dream that immunity is strengthened, hormones are stabilized, short-term memory turns into long-term memory. At night, the human brain gets rid of unnecessary information, forges new neural connections, structures the experience. Why is insomnia dangerous? It is more difficult for the brain to dump unnecessary memories, it loses the opportunity to recover. There is even such a disease - fatal insomnia - in which a person cannot sleep and dies after a couple of years. However, it is easy to restore a disturbed sleep pattern - for one night of poor sleep, two nights of good sleep are needed. Give yourself two days of good rest to get back on track. Legend 4. Memory Exercises Don't Work Scientists have proven that doing crossword puzzles, crocheting or listening to classical music does not improve brain function. For the effect to be effective, the head must be strained, the activity of the frontal lobes must be stimulated, and not the long learned skills must be reproduced in the 10th circle. In this sense, it is better to learn something new - a game of chess, foreign languages, poetry. The more unusual the task, the better the effect. In 2016, a study was conducted with the participation of three thousand people aged 65+.The subjects were divided into three groups, two of which were engaged in various methods to improve memory and attention for 5 years, and the last one was a control one. So, the old people who underwent the training were half as likely to develop senile dementia, processed the tests faster, and were three times less likely to have accidents. And that says a lot! Legend 5. Concussion is life-threatening News feeds love to arrange drama from scratch, exaggerate the consequences of certain events in order to cause the public to wow. The media often reports on how brain injuries make people disabled for life, and one small concussion can be an excuse to end a career as a boxer or hockey player. However, in practice, this is not so - the brain quickly recovers from an injury. Multiple and regular concussions cause serious harm, and even there, a good physical therapist can work wonders. Legend 6. The ENS is no less important than the CNS Have you heard about such a discovery as the enteric nervous system? It is a plexus of nerve fibers in the stomach and intestines, often referred to as the second brain. They are the ones who send signals of hunger and satiety, react to anxiety or falling in love with "butterflies in the stomach." But comparing them with the brain is stupid, since the removal of some of these fibers does not lead to any serious consequences and nervous disorders. During operations on the stomach or intestines, they are often cut out together with the tumor or adhesions, shortening the small intestine by more than half, but this does not in any way affect the health and habits of the person. Read also: 5 drugs that revolutionized medicine and changed the world forever

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