Lead: For today's lifestyle, it can basically be said to be a pair of headphones . In most occasions, such as on the street, bus, subway, etc., headphones may be the best choice for everyone, while listening to music. You can also pursue trend and fashion, but many people think that wearing earphones for a long time will cause great damage to the ears. Is this true?
First, users comments:
1. Netizen: 32-year-old teacher
Headphones are worn on the subway every day at work, and hearing does not decrease.
Every day I go to work to take the subway. There are many people on the subway and the environment is noisy. I have to plug in the headphones and listen to my favorite music. I can calm down. This habit started from the age of 23 and it has been 9 years. My hearing is very good and there is no difference.
2. User: Xiao Sun 25-year-old executive
I always wear headphones. Now I often hear tinnitus and I can't hear the sound.
I often wear headphones from the age of 15. Whether on the road or in ordinary leisure, I like to listen to my favorite songs. When I was in college entrance exams, I even listened to English words on the road. I think this is a full use of time. Now my hearing is getting worse and worse. I often hear the sound of the TV, and I am also accompanied by the symptoms of tinnitus. It is very likely that the earphones have damaged my hearing.
Headphone Injury Hearing is progressive and easily overlooked
Second, the expert comment:
Associate Professor Xu Huixian, Department of Otolaryngology, First Affiliated Hospital of Guangzhou University of Chinese Medicine
1, wearing headphones damage hearing is a gradual, easily overlooked
"Long-term wearing headphones not only damages the hearing, but also the damage is difficult to reproduce and recover." Associate Professor Xu Huixian of the Department of Otolaryngology at the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine said that, like other senses, there are special hearing "sensors" in the ear-- - The cilia cells in the cochlea. We can hear the sound because the susceptor is stimulated and the cilia vibrate with the sound.
Once the cilia swing too hard, it can easily damage bad hearing. It is for this reason that you hear a loud blast and a short burst of "burst" after staying in a karaoke room for a long time. While wearing headphones does not clearly detect hearing changes, such damage is gradual and often overlooked. Excessive stimulation of the cilia of the cochlea can lead to reduced sensitivity, which can damage hearing in the long run. “The sensory deafness caused by the damage to the cochlea is still a world problem, and most of it is irreversible.â€
2, the headphone volume does not exceed the player maximum volume 2/3
Putting on headphones and listening to music is a good way to kill boredom for people who commuting to and from public transport on a daily basis. It does not affect others but also entertain themselves. However, experts have warned that wearing headphones for a long time, especially if they are used to listening to loud songs, will lead to progressive hearing loss.
Dizziness, tinnitus, ear plugs, or wearing headphones for more than 3-4 hours a day, are at high risk of hearing impairment. Experts suggest that the sound of wearing headphones should not exceed 2/3 of the maximum volume of the player. After listening for 30-40 minutes each time, the ears should be fully rested.
3, more than 85 decibels, damaged cochlear cilia cells
Of course, not all sounds can cause hearing impairment. Xu Huixian said that normal normal people speak about 40-60 decibels, and the sound in class is about 70 decibels, but the volume when listening to headphones often goes above 85 decibels (more than 85 decibels can damage the cochlear cilia cells). Especially in noisy outdoor and public transportation environment, the external environment is too noisy. If you want to hear clearly the sound in the headphones, you must increase the volume, which will inevitably bring too much stimulation to the cochlea.
Xu Huixian suggested that many hearing impaired patients engage in the customer service industry. Due to monaural stimulation, uncontrollable volume, and up to 8 hours of stimulation per day, many customer service personnel experienced heavy shocks and tinnitus, which is a manifestation of hearing impairment. She suggested that the volume of headphones to listen to music should be controlled within 2/3 of the maximum volume, and try to debug it as much as usual. Adults do not wear headphones for more than 3-4 hours a day, minors do not exceed 1-2 hours a day, and 30-40 minutes after wearing headphones, they must fully rest their ears.
Headphones are relatively safe
4, headset is relatively safe
For people who need to wear headphones for a long time, it is recommended to choose a headset. Xu Huixian said that the in-ear earphones have a small sound contact area and have a higher pressure inside the cochlea; the headset has a large contact area and a small pressure, and the stimulation of the cochlea cilia cells is relatively small and safer.
In addition, the received sound can be transmitted through the skull in addition to the air conduction pathway. In particular, when students are listening, they can listen to headphones and wear headphones. They can also hear sounds and reduce the stimulation of the cochlea.
5. Three symptoms appear to prove the ear is damaged
There are three major manifestations of impaired hearing in the ears: impaired high frequency, increased sensitivity, and decreased hearing.
Because music has many electronic sounds that are high-frequency sounds, wearing headphones most often results in high-frequency damage. However, this kind of hearing impairment is often not easy to detect. Since the ear can hear sounds at 150-8000hz, and people's audio is only at 250-2000hz, even if the high frequency is impaired, the influence on language communication is not great. However, high-frequency damage may also be manifested as dizziness, dizziness, and head swelling. If you wear headphones for a long time and have the above symptoms, it is likely that your hearing has been damaged.
Increased sensitivity to the ear will cause the sound to change with a little change, it will be difficult to accept. There are heavy shocks, tinnitus, ear plugs, dizziness and other symptoms, many customer service personnel have this problem.
Hearing loss means you need to increase the volume to hear the sound. However, the feeling of sound is more subjective. In addition to the structure of the ear itself, it is also related to the environment and concentration. In a noisy environment, it is not easy to hear even loud sounds (not necessarily hearing impairment, but doing so for a long time can damage hearing). Therefore, once you feel hearing declining, it is best to check in the ENT hospital in time.
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