Why does a loudness of 120dB cause permanent damage to the auditory sense?

The structure of the human ear to perceive sound is hair cells, which are non-renewable, and if they are damaged or die, they are irreversible, so it will affect hearing. The sound of 120 decibels is already very loud, which can be compared with the sound of thunder and the sound of the plane taking off, so it has an impact on our human ears.

Hello, why does a loudness of 120db cause permanent damage to the sense of hearing? Excessive sound will cause damage to the hearing hair cells, and the hair cells will not regenerate after being damaged, which will cause an impact on hearing. Hope mine is helpful to you.

db is a decibel.

The relationship between sound intensity and hearing is not linear, and the lowest perceptible energy transmitted by the sound source energy to the human ear is assumed to be 1 decibel, then the 2 decibels that the human ear can experience requires the sound source energy to be increased by 10 times. In other words, 2 decibels of energy is 10 times that of 1 decibel.

Therefore, the energy of 120 decibels is equivalent to 10 to the 120th power of the smallest sound that the human ear can perceive, the energy multiple is quite large, and the sound intensity that the human ear can identify is limited, and the sound intensity of 120 decibels is seriously beyond the eardrum.

Capacity, which can lead to a rupture of the eardrum and permanent damage to hearing.

The above is a statement that favors the understanding of non-specialists.

Noise below 85 decibels is not harmful to hearing, while noise above 85 decibels can be dangerous. Statistics show that the incidence of deafness increases significantly when working in a noise environment above 90 decibels for a long time. Above 110 decibels, resulting in permanent hearing loss.

Average hearing loss of less than or equal to 25 dB is considered normal;

Mean hearing loss between 26 and 40 dB is considered mild;

Average hearing loss between 41 and 60 dB is considered moderate hearing loss;

Mean hearing loss between 61 80 dB is considered severe hearing loss;

Mean hearing loss of 81 dB or more is considered very severe.

The new standard is now mostly adopted. It classifies the degree of hearing loss into 5 grades based on the average hearing loss of 4000 Hz: 26 40dB is mild, 41 55dB is moderate, 56 70dB is moderate to severe, 71 90dB is severe, and greater than 90dB is very severe.

It has been clinically confirmed that the sound of human conversation is 60 decibels, and the strongest sound that human hearing can withstand is 90 decibels, but the sound intensity of some dance halls and game rooms exceeds 115 decibels. Many teenagers like to listen to *** or stay in the big sound of the dance hall or game room for a long time, for a long time, people's auditory function will be damaged, the light hearing ability will be reduced, the heavy one completely loses the ability to hear. Many teenagers come out of the ballroom with significant dizziness and headaches.

If you make noise every day, you will definitely get permanent hearing damage.

Long-term exposure to noise above 80db can easily cause noise-induced permanent hearing loss.

We usually use decibels to describe the volume of sound, and any sound that lasts for 8 hours or more and exceeds 85 decibels is considered unsafe. Such unsafe sounds abound in our lives, and these sounds will increase our risk of permanent hearing loss: for example, the sound of firecrackers has reached 125 decibels, **will, lawn mowers, some power tools, some loud motor vehicles, target shooting, fireworks, etc.

A few simple tips can help you determine if the noise around you is harming your hearing. For example, if you are in a noisy environment, an arm's length away from others, and you always have to raise the volume of your speech to drown out the noise to hear clearly, it is already a dangerous sign that the noise in this environment is already quite dangerous. In addition to this, there are other warning signs that warn you to be careful of these noises:

Away from this noisy environment, you will feel pain in your ears; Immediately after exposure to these noises, you will hear a "ringing" or "buzzing" tinnitus in your ears; After being exposed to these noises, you suddenly feel that it is difficult to understand what others are saying, and you can hear what others are saying but do not understand. If we want to listen easily and live happily, we need to avoid hearing damage and stay away from noise in our daily life.

Generally, in the process of noise disease, 90 decibels is a clear hurdle, and the individual differences between people are not obvious after more than 90 decibels, and this kind of noise has adverse effects on the vast majority of people, which can cause various diseases. The damage to people caused by steady-state noise that has been maintained in a state is less than the same decibels, but the impulse noise of the sound is loud and small, and the sudden appearance of 100 decibels of noise may even cause people to instantly perforate the eardrum and lose hearing, so noise is recognized as a common pollution factor. It is best not to be in a noisy environment for a long time.

People usually measure the magnitude of sound waves with a sound level meter, which is measured in decibels (dB).The smallest sound that a normal person can hear is called the hearing threshold, the sound intensity of the hearing threshold is 0 decibels, and the sound of the human ear starting to feel pain is called the pain threshold, and the pain threshold is 120 decibels. 30 decibels when people whisper softly, 60 decibels when talking in general, 80 90 decibels when shouting loudly, 100 decibels for trains, tractors, cannon firing, and 130 decibels for aircraft takeoff.

Decibels are about the sound that a person can just feel. A suitable living environment should not exceed 4 5 decibels and should not be less than 1 5 decibels.

According to the average person's sense of hearing, 0 2 0 decibels are very quiet, almost invisible. 2 0 4 0 dB is quiet, like a whisper. 4 0 6 0 dB average.

Ordinary indoor conversation 6 0 7 0 dB is noisy and nerve-damaging. 7 0 9 0 decibels are noisy and nerve cells are destroyed. 9 0 1 0 0 dB Loud and hearing impaired.

1 0 0 1 2 0 decibels are unbearable, and a minute of deafness is temporary.

Hello. The hearing threshold of our normal people is less than 25db, and the sound above the comfort threshold is the loudness of our loud voice. The threshold for us to feel unwell (UCL) is 120dbspl

Prolonged exposure to loudness levels above 120db can cause sudden deafness and damage to hearing hair cells. Think for yourself.

The normal human ear can hear in the range of 0-120 decibels.

There is no doubt that loud decibels of noise can cause noise deafness to the ear. Wearing earmuffs or earplugs can reduce noise damage to your ears. If you want to determine the extent of the injury, you can do a pure-tone audiometry test.

The environment in which people live is generally 40 to 70 decibels, and 40-60 decibels is only equivalent to ordinary indoor conversation. 60-70 dB is a noisy environment that can damage nerves. 70-90 decibels is already noisy, and there are already nerve cells that are harmed by destruction.

90-100 decibels, the noise intensifies, and the hearing is significantly damaged. Therefore, although it is under 100 decibels for a short time, people's hearing will still be damaged to a certain extent. However, if it is not for the sudden entry into such an environment or the long-term existence in such an environment, the damage should not be very large.

Noise above 85 90db is damaging to the cochlea, depending on the frequency, type, loudness, timing and mode of exposure, and individual susceptibility.

Long-term exposure to noise above 70 dbb can cause hearing loss.

Noise above 50 decibels for a long time will have an impact on hearing.

Hello, causes of hearing loss:

1. Secretory or purulent otitis media can lead to hearing loss in the ear.

2. Drug toxicity: aminoglycoside antibiotics such as gentamicin, streptomycin, neomycin, kanamycin, vancomycin, etc. It is manifested by hearing loss in both ears and a phenomenon of rejuvenation.

3. Infectious deafness: caused by rheumatosis, measles, mumps, meningoccal meningitis, typhoid fever, etc.

4. Sudden deafness: It is currently believed to be related to inner ear blood supply disorder or mold infection. Sudden onset within minutes or days, this symptom is accompanied by tinnitus, nausea, vomiting. For this kind of deafness, the sooner the better, and there will be a good effect in the early stage.

5. Presbycusis: With the increase of age, the organs of the whole body will age, and the hearing organs will also undergo aging and degeneration, causing hearing loss.

6. Great vestibular aqueduct syndrome: It is a congenital genetic disease, which is related to autosomal recessive inheritance.

In medicine, hearing loss is generally referred to as deafness. Deafness does not mean that you cannot hear a single sound, but there are certain degrees of difference, such as mild, moderate and severe, and even total deafness.

**Analyse. 1. Excessive ear cleaning, caused by destruction of the eardrum, 2. Diseases of the five senses, such as otitis media, rhinitis, etc., 3. Cardiovascular and cerebrovascular diseases, such as hypertension, etc.

4. Caused by excessive work pressure, such as excessive fatigue, poor rest, etc.

5. Caused by loud noise around work or life.

6. Adverse drug reactions.

Hearing loss that occurs in the outer or middle ear is often referred to as conductive auditory loss, such as otitis media, perforated eardrum, etc.

There are two main types of hearing loss, one is conductive hearing loss caused by inflammation and the other is sensorineural hearing loss caused by neuropathy. Inflammation is often caused by perforation of the eardrum or recurrent chronic otitis media and cholesteatoma, which can lead to hearing loss.

There are many causes of hearing loss, if not congenital, but also acquired, such as medications, work stress, prolonged noise exposure, illness, etc. As long as you notice signs of hearing loss, seek medical attention in time to avoid greater hearing loss, exercise more, eat a balanced diet, and relax your mind.

Hello, roughly divided into:

1. Conductive hearing loss.

Hearing loss that occurs in the outer or middle ear is called conductive auditory loss, such as otitis media, tympanic membrane perforation, etc.

2. Sensorineural hearing loss.

Hearing loss that occurs in the inner ear or retrocochlear neuropathy is called sensorineural hearing loss.

3. Mixed hearing loss.

Mixed hearing loss is a mixture of conductive and sensorineural hearing loss.

1. Many factors can affect your hearing and cause hearing loss, including:

1. Long-term exposure to noise;

2. Genetic diseases;

3. Ototoxic drugs;

4. Trauma; 5. Ear canal embolism;

6. Aging.

2. Noise-induced hearing loss.

Long-term exposure to noise above 85db can cause hearing damage. For example, if you've just finished listening to a large symphony** or at a very high volume***, you'll often notice that your hearing seems to have deteriorated. This is because the delicate hair cells in the auditory organs have been temporarily damaged, but after a period of quiet, the damaged hair cells will recover.

This phenomenon is known as temporary threshold shift (TTS). However, if you are exposed to high-intensity noise for a long time, these delicate hair cells will be permanently damaged and cannot be recovered. This is called permanent threshold shift (PTS).

Deafening at concerts, in nightclubs, or in headphones is particularly dangerous. For example, when amplified by headphones, it can easily soar to dangerous levels of 110-120db. Of course, sudden loud noises such as firecrackers can also cause noise-induced hearing loss.

People working in high-noise environments should pay more attention to protecting their hearing and take ear protection measures, such as: construction workers, workshop workers, airport runway maintenance workers and ** workers.

Excessive noise can also cause tinnitus. Tinnitus is a sound that appears inside one or both ears that is different from real-life noise. In reality, these sounds do not exist and constantly reverberate in the brain in different forms and volumes.

3. What can you do?

Prevention is always better than **, wearing appropriate hearing protection, such as common earplugs or earmuffs on the market, can also be customized with different sound filtering devices, etc., the most correct and effective way to protect hearing.

Normal hearing is necessary for our daily interactions, life and work. Hearing organs, like other organs of the human body, will be affected by various harmful factors, such as genetic factors, ototoxic drugs, senile decline, excessive noise, bacterial or viral infection, etc., will cause damage to people's hearing organs, affect people's hearing, and make people have hearing difficulties, such as severe hearing and severe deafness.

Such as genetic factors, ototoxic drugs, senile decline, excessive noise, bacterial or viral infections.

There are many reasons: 1. Congenital hearing loss occurs due to genetic factors, or the mother is damaged by some harmful factors during pregnancy - such as drugs, infections, etc., which affect the development of the fetal inner ear. 2. External causes: including trauma, ear diseases, etc.