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Why do people seem to be blindfolded when they ride the high-speed train? No sound can be heard. When I closed my eyes tightly, I could faintly feel a strange sound in my ears.
When you move your jaw, you will also notice the presence of this sound, it is like the sound of an airplane flying by.
In response to this phenomenon raised by many people, some experts have conducted research and analysis. It was found that the tensor tympanic membrane muscle in the ear produced a low, rumbling sound, and the main function of the eardrum is to suppress the sound made when you chew something. According to experts, the tensor tympanic membrane muscles are able to contract autonomously, and then the vibrations produce that strange sound.
If the contraction is fast, it can reach 70 times per second, and if it is slow, it can reach 30 times per second.
Similar phenomena can occur in other parts of the body, such as when you clench your fists with all your might, and you will find your hands shaking involuntarily, similar to the sounds in your ears when you move your jaw. In addition, some people have found that when the surroundings are quiet, a clenched fist can be placed next to the ear, and a similar muffled sound can be heard.
The tensor tympanic membrane muscles work not only to maintain pressure balance between the ear canal and throat. I believe that people who have taken the subway will feel this way, but when the subway is running at high speed, it is followed by a burst of high-decibel noise. Then your ears start to feel like they're covered with something that you can't hear and can't recover for a long time if you don't take other measures.
Experienced people will move the roof and jaw of the mouth so that the "blindfolded" layer of the ear can be broken, and then normal hearing can be restored。The reason for this is:Because of the imbalance between the pressure on the outside and the pressure inside the ear, a muscle called the eustachian tube pharyngeal muscle, which balances the pressure inside and outside the ear.
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This is because the speed of high-speed rail is relatively fast, so the ears will suddenly not be able to hear the sound.
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Because the high-speed rail runs too fast, the internal and external pressures are different, so no sound can be heard.
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Because this is due to the fact that the structure in the human ear has experienced expansion in this situation.
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Because there is a possibility of an impact on the ears at this time, you can't hear any sound.
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After taking the high-speed train or airplane, the tinnitus will resolve on its own after a while, and it is recommended to go to the hospital if necessary, which may be a Eustachian tube disorder, or an inner ear injury.
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This situation is the same when taking a high-speed train as an airplane, because of the high air pressure.
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Because the speed of high-speed rail is relatively fast, sometimes the ears will have this phenomenon.
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The main thing is that the speed of the high-speed rail is too fast and the sound is too loud to hear anything else.
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This is because the ears haven't adjusted to the pressure of high-speed rail.
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Nowadays, when taking the high-speed rail, it is difficult to hear the rhythmic "clang" between the wheels and the rails, to know today's high-speed rail.
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