What is Ear? – Noisy Environment and Ear Protection

A large study has not been conducted in our country, but in a study conducted in the United States
one in ten Americans has enough hearing loss to understand normal speech

“Exposure to loud noise” is the most common cause.

Can “noise” really damage my ears?

Yes, noise can be dangerous. If it is loud enough and long enough, it can damage your hearing.
Damage caused by noise is called neural hearing loss; There are many reasons for this type of hearing.
loss, but noise has an important advantage – its progress can be stopped or
completely avoidable.

Can I practice my ears?

No. If you think you are used to it because you always grew up in noise, this is wrong. Noise
have reduced your hearing, and no medication, surgery, or hearing aid can damage your ear from the noise.
cannot fully fix it.

How Does the Ear Work?
The ear consists of three main parts: external, middle and internal. outer ear, auricle and outer ear
formed by the way. The eardrum separates the outer ear from the middle ear. middle ear three
small ossicles transmit sound waves to the inner ear. In the inner ear, the auditory nerve begins and
carries it to the brain.

Any sound source sends sound waves or vibrations into the air. These pass through the external ear canal.
it hits your eardrum and makes it vibrate. Vibrations are transmitted to the inner ear through the ossicles in the middle ear.
transmitted to the auditory nerve.

Here, the vibrations turn into nerve impulses and are sent to the relevant area in the brain. The brain, the sound “music, door”
impact, human voice”.

If the noise is too loud, it starts to kill the nerve cells in the inner ear. Longer exposure to noise
The more exposure, the more auditory nerves are damaged. As the number of nerves in your auditory nerve decreases, your hearing will also decrease.
decreases. It is not possible to bring dead nerve cells back to life; the damage is permanent.

How do I know that noise is harmful?

People’s sensitivity to noise varies. In general, under the following conditions, noise may damage your ear.
can give:

if you have to shout to hear yourself
if the noise is causing pain in your ear
if you have tinnitus
you feel slightly deaf for several hours after exposure to noise.
Sound can be measured scientifically in two ways. The intensity or intensity of sound is expressed in ki decibels.
Frequency is the number of vibrations per second of sound. The sound is thick (low) at low frequencies, low at high frequencies
thin (high) is heard.

What does the frequency of sound have to do with my hearing loss?

Frequency is expressed in vibrations per second. Children with the best hearing, at 20 per second
They can hear sounds between 20,000 vibrations.

The human voice is between 300 and 4000 frequencies, and people hear the sounds in between better than others.
When hearing loss begins, hearing at high frequencies decreases first, which is why people are thin.
They have difficulty in hearing the voices of loud women and children.

Loss in high frequencies can also distort the structure of the sound; so even if people hear
They have difficulty understanding. Those with hearing loss are often unable to distinguish similar sounds.
they struggle.

What is Decibel?
The intensity of sound is measured in decibels (dB). 0 decibels is the lowest sound that the human ear can hear.
acceptable. 180 dB is measured as the sound the rocket makes at launch.

Decibels increase and decrease logarithmically. This means. 20 dB is 10 times more intense than 10 dB.
30 dB is 100 times louder than 10 decibels.

Approximate sound sample level (dB)

0 The lowest sound that the human ear can hear
30 Whisper, silent talk
60 Normal speech, sewing machine, typewriter
90 Heavy vehicle traffic, maximum human exposure of 8 hours per day (90% of people with this
can be protected)
100 Chainsaw, asphalt drill, (up to two hours of unprotected exposure per day)
115 Loud rocket or rock concerts (maximum 15 minutes of exposure per day)
140 Gunshot, jet engine, (causing pain in unprotected ears. Do not allow this sound without ear protection.
should not be given)

How high can the decibels be without affecting my ear?

Experts agree that sustained exposure to sound above 85 decibels can be dangerous.

Does the duration of the sound I hear have anything to do with the danger of affecting my hearing?

There is definitely. The longer you are exposed to high-intensity sound, the more you hear.
damage occurs.
The closer you are to the sound source, the louder the sound.
Each gunshot can damage the hearing of people nearby. Long-barreled guns and cannon
they are the worst because they sound louder. But even toy guns are in your hearing if you’re near
may cause damage.

Recent research on young people has given considerable alarm. very noisy discos
and listening to loud music with headphones may be to blame.

Can noise do more damage than my hearing?

Tinnitus that occurs after exposure to noise is mostly permanent. some people,
There may be increased anxiety and sensitivity to loud noise, an increase in heart rate and blood pressure, or an increase in stomach
increase in acid secretion.

Loud noise can also be a distraction in the work environment, reducing productivity.

Should I use hearing protectors?

If you work in a very noisy environment, you should use hearing protectors. Also very noisy
You should also use it when using a tool or weapon.

Noise of 85dB or above should not be allowed in the workplace for more than eight hours a day. you work
If the average sound intensity in the floor is higher than 90 dB for eight hours, you should use hearing protectors.

What are hearing protectors and how effective are they?

These protectors serve to reduce the intensity of the sound reaching the membrane. They come in two types: earplugs
and headphones.
Earplugs are plugs that are inserted into the external ear canal and prevent the intensity of the sound. For these to be effective
They should completely block the ear canal. It is sold in various sizes. Make sure they are clean when using and
Care should be taken to ensure that they do not irritate the ear canal.
The earphones cover the whole ear and a band connects the two earphones together. To be effective, the auricle

It should close tightly.
Fully applied earplugs and earplugs reduce the volume of sound by 15 to 30dB. the two are equal
earplugs are more effective at low frequencies, earplugs are more effective at high frequencies
they are effective.

When used together they provide an additional 10-15dB of protection. If the noise is higher than 105dB
It is recommended to use them together.

Why can’t I just cover my ears with cotton?

Simple cotton and paper inserted into the ear canal cannot prevent sound very effectively, only about 7dB of intensity.
they reduce.

What are the common problems of hearing protectors?

With less than half of the mandatory protection level of workers wearing this type of hearing protection
were found to be preserved. This is because preservatives are not used properly and continuously.
Protectors that provide 30dB protection when used continuously for eight hours, for example only one hour
If they are not installed, their shielding drops to 9dB.
In addition, exposure to noise accumulates. Noise encountered at home or at play is also
should be added to the daily limit. If the maximum daily dose has been reached at the workplace, then in a noisy environment
Being around or listening to loud music will cause you to exceed the safety limit.

Can I hear other people or machines while wearing hearing protectors?

Just as sunglasses make vision easier, hearing protectors can be used in spite of the surrounding noise.
They help to understand speech more clearly. Hearing protection even in a noise-free environment
users can hear a normal conversation.

Hearing protectors do not have a significant effect on people with hearing loss and language problems.
They should wear protection to prevent further deterioration of their hearing.
It is sometimes claimed that workers wearing hearing protection do not hear the machine making a distorted sound, but
workers get used to it after a while and notice the sound change.

What if my hearing is damaged? What can I do ?

Hearing loss usually develops over years. As it is painless and gradual
you may not arrive. You may notice the ringing sound that occurs with prolonged exposure to loud noise.
You may not understand what people are saying, especially in noisy environments. This is high frequency hearing.
This may be the beginning of your hearing loss and your hearing needs to be tested.

Sometimes these conditions are just caused by an earwax or ear infection and are easily treatable. But

There may also be hearing loss caused by noise. Since this situation is permanent, the precaution should not be abandoned.
must. Consult an otolaryngologist when you suspect your hearing loss. your doctor
will reveal your hearing problem and recommend the best treatment method.

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