Be alert to the deafness of teenagers

According to the data provided by the World Health Organization, about 1.1 billion young people around the world are at risk of hearing loss due to unsafe use of smart phones, matching headphones and other devices. Who also analyzed research data from middle – and high-income countries, and found that nearly 50% of people aged 12 to 35 use personal audio devices at unsafe levels.

Teenagers face hearing crisis

An 18-year-old boy was diagnosed with hearing impairment caused by noise, which surprised the young man. In his opinion, he was so young and didn’t have much exposure to noise, so he lost his hearing. So, what is the cause of the hearing impairment of the patient? The doctor asked carefully, and found that the young man liked to listen to music, and he wore headphones even in noisy places. According to experts, this is not a case. It is very common among people who use headphones, especially among teenagers.

In China, a sampling survey was conducted among 3826 college students in a university. The results showed that there were 3819 people using earphones, and the usage rate of earphones was 99.8%. Among them, more than 800 people used earphones for more than 2 hours a day, accounting for more than 20%. Among the students surveyed, more than 1000 have suffered from noise induced hearing loss, accounting for nearly 30%.

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If the volume exceeds 89 decibels for a long time, it may cause hearing loss.

So, what causes headphones to have a greater risk in terms of hearing impairment? One is related to the use environment. If earphones are used in relatively noisy environment, the sound volume will be increased, which may increase the risk of hearing damage; secondly, there is still a lack of mandatory standards for hearing safety in China, and mobile phone products basically do not add volume prompt function. Relevant risk monitoring results show that about 50% of earphones exceed the maximum sound pressure level, and improper use will undoubtedly cause irreversible hearing damage. The safety risks of earphones and supporting products cannot be underestimated.

Listening to music with headphones can cause temporary hearing impairment if the sound is more than 85 decibels and lasts for more than 30 minutes, according to a European Union survey. If you listen to music at a volume of more than 89 decibels per day for up to one hour, lasting for five years, you may lose your hearing permanently. For this reason, in order to play a role of warning and warning, the EU has formulated a strict earphone hearing safety standard, and added the prompt function of volume safety limit in mobile audio devices such as mobile phones. At present, mobile phone products from Europe have basically added volume prompt function, but at present, there is no such regulation in China, and domestic mobile phone products have basically not been marked.

A survey of scene noise in daily life shows that the noise in noisy streets is generally around 70 decibels, while the noise in buses and subways is around 85 decibels. If you want to hear the sound in the earphone in a relatively noisy environment, you need a large volume. At this time, the earphone may unconsciously cause damage to the user’s hearing. Studies at home and abroad have proved that long-term, loud use of headphones will cause serious damage to hair cells in the ear, which will bring irreversible damage to the user’s hearing.

Protect hearing. Teenagers should not wear headphones for more than two hours a day

When people put on earphones, the outer ear canal is tightly blocked by earphones. High volume audio pressure will directly enter the ear and damage the hearing, causing irrecoverable hearing damage. Listening to music with headphones for a long time will cause fatigue and damage to the hearing, which will lead to hearing loss. The human body will suffer from restlessness, dizziness, insomnia, memory loss, inattention, mental retardation, abnormal psychological disorder, etc., which is very harmful to the health of the body.

Experts remind that people who often wear headphones to listen to music should master the “60-60-60” principle, which is also internationally recognized as a way to protect hearing. That is, when listening to music, the volume should not exceed 60% of the maximum volume, the continuous listening time should not exceed 60 minutes, and the external sound should not exceed 60 decibels. Adults use earphones no more than 3-4 hours a day. Teenagers should not use earphones more than two hours a day because their hearing organs are not mature. It is better to listen intermittently. And every time you wear headphones for 30 to 40 minutes, you need to rest your ears. When listening to music with headphones, you should pay attention to reducing the volume. It’s better to keep it soft and not harsh. It’s better to keep it at 40 to 60 decibels. You should choose headphones with flexible and free volume control. When the sound suddenly becomes larger, you can adjust it in time to protect your hearing.

So near the beginning of the school, only to listen to the warm reminder to all students: on the way to and from school, when you enjoy the pleasure of music, you must control the volume; some students like to wear headphones for a long time to review, do homework, etc., which has a great impact on listening, so let the ears rest properly!

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