“We heard 2 hours of headphones and irreversible hearing injuries†Weibo had gone crazy online, and Weibo said: Experiments have shown that wearing headphones continuously listens to music for an hour and the hearing is significantly reduced. Listening for 2 hours will really happen. Hearing damage to your hearing!
Citizens: often wearing headphones feels left hearing loss
Mr. Dai liked to use earphones. He likes to use headphones to listen to music. When he is in the car, he does not leave his ear. "To listen to music in public places, in order not to affect other people, generally do not open a mobile phone external speakers." Mr. Dai said that in the long run, it has developed into a habit of wearing headphones and listening to music anywhere. As a music enthusiast, he also likes to wear headphones when listening to music at home. "Because this sounds better."
However, Mr. Dai has discovered a strange phenomenon recently. When he wears both headphones to listen to music, he feels that the volume of the left ear is not on the right side. "At first, I thought it was a problem with headphones . Then I stuffed the same headphones to the left and right, and the volume on the left was obviously lower." This made Mr. Dai very puzzled. Is it really because of wearing headphones? A long time, hearing loss? Can this situation be restored?
Doctor: Whether hearing can be restored depends on whether the nerve cells are necrotic
Regarding Mr. Dai, this situation, Dr. Sun Yongdong believed that it should be hearing loss in the ear. However, it is not because of wearing headphones that one cannot easily draw conclusions, and whether recovery depends on whether the nerve cells are necrotic. “Injury to hearing is usually caused by long-term exposure to harmful sounds, such as sounds that exceed a certain frequency, that is, what we call noise.†Sun Yongdong told reporters that he had encountered a case before, a girl wearing headphones to listen to music at night. When I fell asleep. Woke up the next day and found himself unable to hear the sound. "This is a sudden deafness, and the pathogenesis is still uncertain, but it should be a long-lasting strong stimuli."
There are two kinds of sound damage to the ear, Sun Yongdong said: "One is the irreversible death of the ear nerve, the other is the ear nerve cell edema." If the body resistance decreased, fatigue, vasospasm and other causes of ear ischemia and hypoxia, so that Cause degeneration of the cochlear nerve, death, is the irreversible death of ear nerves.
Electrolyte disorders caused by colds and other causes cause ear nerve edema. At this time, ear nerve cells have not been necrotic and can be recovered. "At this time, supplementing nutrition with murine neurotrophic factor can be restored," Sun Yongdong said. If the cells still have life, they can survive by providing nutrition. If there is no life, there is no point in replenishing nutrition.
Many people think that headsets hurt less than earphones, but Sun Yongdong said that this basis is not very sufficient. “Because the two methods of wearing headphones, the principle of sound transmission is the same, but the headset will not cause harm to the external auditory canal.†At the same time, Sun Yongdong also reminded everyone that the best headphones to take off before going to bed, wearing headphones The best time is no more than one hour.
Xiao Bian tips, unless necessary, do not take headphones for too long, or the body's most important ah.
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