in everyday life
Many Xi can inadvertently affect hearing
Do you like to listen to music with headphones on?
How long do you usually listen to it continuously?
In CCTV's "Let's Talk" program, Wu Hao, chairman of the Otolaryngology-Head and Neck Surgery Branch of the Chinese Medical Association and president of the Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, introduced——
The frequency of sound that a normal person can hear is between 20 Hz and 20,000 Hz, and the intensity is 0 to 20 decibels. To protect your hearing, don't listen to music with headphones on for more than 30 minutes in a row, and the volume should not be turned on to two-thirds of the maximum.
In the program, Wu Hao also shared
Quite a few "trivia" about listening
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01.
Why is it the most "model worker" organ?
Wu Hao introduced that human hearing begins at 24 weeks of embryonic development and never stops working until old age, which can be called the most "model worker" organ.
- There are 15,000 hair cells in the inner ear that sense sound, and every time you hear a noise or experience trauma such as a fall or injury, hair cells are lost.
- In addition, improper lifestyle Xi can also lead to hearing damage. Wu Hao once treated a patient who fell asleep with a headset and listened to music at night, and the music played all night, and the next day he had symptoms of hearing in both ears.
02.
How can I detect hearing problems early in my child?
When checking the hearing of young children, small earphones will be stuffed into the ears of children. People around you can't hear anything, but what do children hear?
Wu Hao revealed that this examination is actually an automatic feedback, which is a screening method for otologists. "Children will hear the sound of 'tick', and when they receive the sound, it will automatically form feedback in their ears. ”
Wu Hao introduced that newborn hearing screening is the best way to detect hearing problems early. For years, he and his team have experimented with large-scale newborn hearing screening in delivery rooms.
- From 2001 to 2010, newborn hearing screening went nationwide. After the problem was screened out in the delivery room, hearing aids, cochlear implants and other interventions were immediately given, so that the national newborn hearing screening coverage rate increased from 29.9% in 2008 to 86.5% in 2016, and the age of diagnosis and intervention was significantly earlier.
- Since 2019, Wu Hao and his team have carried out auditory brainstem implantation surgery to further improve the auditory reconstruction effect of congenital deafness.
The scene of the show
Wu Hao also received a very special note
Top Sketch Path
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"Dear Dean Wu, hello, my name is Honkashi. Thanks to your help, I can now not only speak, but also write, and have basically no problem communicating with others. Thank you for helping me with the surgery, allowing me to hear, learning to speak, and giving me a closer connection to the world......"
More than 10 years ago, Wu Hao operated on Gunsong Kassi, who was only 5 years old at the time, which was also the first cochlear implant surgery in Tibet. Looking at Cassie, who was now slim, Wu Hao's eyes couldn't help but moisten.
After more than 20 years of medical practice, Wu Hao has only done one thing, that is, to make the world free of "dumb". Now, with the advancement of medicine, many children with congenital deafness have received early intervention, and the phrase "nine out of ten deaf and dumb" is being overturned.
now
The number of children with hearing impairments in mainland China has been greatly reduced
Wu Hao's greatest wish
One day, all schools for the deaf and dumb will be closed
Let everyone hear the world
编辑 | 任君飞 责编 | 张秀丽
来源 | CCTV-1 央视新闻
Produced by the Guangdong Health Online all-media team