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Why does ballerina never rotate in the head?
Thanks to the changed brain structure, as a result of many years of practice, ballerinas can perform pyruvate without ever being rotated in the head
Thanks to the changed brain structure, as a result of many years of exercise, ballerinas can perform pyruvate in an uninterrupted series like tigers, and never to rotate in the head, found British scientists.
Due to the frequent rotation in the city, the brain of classic ballerina changes, which voids signals that the balance control organs are sending to the inner ear (vestibular system), according to a study published in the journal Cerebral Cortex.
In most people, rapid rotation causes a feeling of dizziness. The reason for this is that fluids that fill the inner ear continue to move and after stopping the rotation, as the coffee does in the cup after mixing.
"Dizziness, the feeling that we are still turning, although we stopped turning around, is a common problem. But the balears are almost never rotated in the head, so we wanted to find out how to see if they could help our patients" , said Dr. Beri Simungal, from the Imperial College in London.
The researchers followed a group of 29 classic ballerines and, for comparison, 20 young women who trained rowing.
During the test, each of them would rotate on a rotating chair in complete darkness and pull the lever if it had the feeling that it was spinning in the head after stopping the chair, which enabled scientists to measure the duration and intensity of the vertebrae.
The researchers also monitored eye reflexes and studied the brain of test participants through a scanner.
With ballerina, the symptoms (feeling dizzy, eye reflexes) always lasted much shorter than those in rowing.
The scanner's record, however, pointed to significant differences between two groups of women, both in the zone of the small brain, which receives signals from the vestibular system and which is smaller in ballerina, as well as in the cerebral cortex responsible for the feeling of dizziness.
"Since classic ballerina is not 'convenient' to feel dizzy or a loss of balance, the brain adjusts over the years and ultimately reverses that information. The signal that gets into the brain is getting weaker, making the ballerinas more resilient to the feeling of dizziness," explained Dr. Simungal .
"If we could control those brain areas in our patients suffering from chronic vertigo, we could get better ways to treat them," he concluded.
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