One cause of hearing loss is noise.
Hearing loss caused by noise is called noise-induced hearing loss.
The symptoms are sensorineural hearing loss, which means that sounds are distorted or not heard correctly.
Let's take a closer look at noise-induced hearing loss.
If you work in a noisy environment, please refer to this article.
Symptoms of Noise-induced Hearing Loss
Noise-induced hearing loss is primarily a symptom of sensorineural hearing loss.
Sensorineural hearing loss does not mean that the sound is quieter, but rather that the sound is distorted.
When you think of hearing loss, you may imagine that it is difficult to hear sound.
Of course, it is difficult to hear sound, but there is also the problem of not being able to hear sound correctly.
Please refer to this article for a detailed explanation of what a sensorineural hearing loss is.
Causes of Noise-Induced Hearing Loss
Noise-induced hearing loss is literally caused by the accumulation of damage to the ears from prolonged listening to noise and other loud sounds.
The ear contains hair cells that convert sound into electrical signals for the brain to understand.
Noise-induced hearing loss occurs when these hair cells are damaged by listening to loud sounds and are unable to transmit the correct sound to the brain.
It is said that the ear is damaged at a level of about 85 dB.
| Volume Level | Allowable time | reference example |
| 85 dB | 8 hour | Inside a subway |
| 97 dB | 30 min | Inside the factory |
| 100 dB | 15 min | Under the train guard |
| 103 dB | 7.5 min | Car horns at close range |
Depending on the loudness of the sound, there is a standard amount of time it is safe to listen to the sound.
Beyond this time, there is a greater chance of damage to the ear and hearing loss.
How to prevent noise-induced hearing loss
The best way to prevent noise-induced hearing loss is to avoid listening to loud noises anyway.
Of course, that is true.
However, it is difficult to live a normal life without listening to loud noises.
For example, it is said that the sound inside a subway train is about 85dB, which is loud enough to start damaging the ears.
Just by riding the subway to work, you are already listening to 85dB of sound.
In this way, it is commonplace to hear sounds of 85 dB or more during normal daily life.
The following two measures can be taken to prevent this from happening.
Do not listen for long periods of time.
After listening to loud sounds, stay in a quiet place for a while.
First, we will try to avoid listening for long periods of time.
This will minimize damage to your ears.
Furthermore, if you have been listening to loud sounds for some time, it is important to give your ears a break in a quiet environment.
For example, after going to a live concert, you may leave with a heightened sense of excitement.
Since you have been listening to loud music for a long time at a live concert, you should give your ears a break by not listening to music on the way home or by turning the volume down to a lower level than usual.
Make sure you take good care of your ears.
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