What are the dangers of noise hearing loss?

Noise-induced hearing loss, although **, is a progressive, permanent hearing loss. However, it is also completely preventable. Prolonged exposure to sound at a sound pressure level of 85 decibels or higher can cause damage to the inner ear auditory hair cells, followed by noise-induced hearing loss.

This kind of damage can be caused by sudden strong impulse noise such as ** sound and gunshot; It can also be caused by prolonged or repeated exposure to loud mechanical noises or entertainment environments such as high decibels**.

Because it is difficult to hear soft, high-frequency sounds, people with noise-induced hearing loss can hear what is being said but cannot understand what is being said. The process is so silent that people don't usually realize they have hearing loss unless it's so severe that they can't have everyday conversations.

Noise-induced hearing loss, although **, is a progressive, permanent hearing loss. However, it is also completely preventable. Prolonged exposure to sound at a sound pressure level of 85 decibels or higher can cause damage to the inner ear auditory hair cells, followed by noise-induced hearing loss.

This kind of damage can be caused by sudden strong impulse noise such as ** sound and gunshot; It can also be caused by prolonged or repeated exposure to loud mechanical noises or entertainment environments such as high decibels**.

In modern society, noise has brought more and more harm to people. In ordinary life, we are always surrounded by noise, whether it is traffic noise or engineering noise, which will cause great damage to our hearing. So, what are the factors related to noise damage to our hearing?

Let's take a look at it.

Factors related to noise damage to hearing:

1.The greater the noise intensity, the heavier and faster the damage to hearing. The intensity is the same, the higher the frequency, the narrower the spectrum, and the more harmful it is.

2.Impulse noise (duration less than seconds, interval greater than 1 second, intensity fluctuation amplitude of more than 40dB) is more harmful than sustained noise of the same sound level. The unsteady state (sound intensity fluctuation above 5db) noise in continuous noise is more harmful than that of steady-state noise.

3.Regardless of the type of noise, the more hours and years of service you are exposed to each day, the more you will suffer. The critical exposure period for hearing impairment (the minimum number of years that causes more than 5% of workers to have hearing impairment) is related to noise intensity:

About 20 years at 85db(a); About 10 years at 90dB(A); About 5 years at 95dB(A); Less than 5 years at 100dB(A). If the daily exposure time is the same, continuous exposure is more harmful than intermittent exposure with rest.

4.The combination of noise and vibration is greater than that of non-vibration.

5.The older the age, the more susceptible to damage, is also related to the individual's sensitivity. Sensitivity varies greatly.

6.The original patient has sensorineural hearing loss, which is susceptible to noise redamage. The impact of middle ear disorders on noise damage is inconclusive.

7.It has a lot to do with the ability to consistently use individual or group protective measures.

Noise-induced hearing loss (NOLSE

hearing

loss) refers to hearing loss in people who are generally exposed to noise for a long time. The value after deducting the age-induced hearing loss is used as an indicator. Affected by factors such as noise intensity, frequency, exposure time, and exposure mode (continuous, intermittent, pulsed).

In terms of the relationship between noise intensity and hearing loss, the noise intensity exceeds the critical value (noise level 55 dB to 65 dB above), and the hearing loss is generally linearly related to the noise intensity after a certain period of exposure. The slope of the curve varies with the audiometry frequency.

Noise-induced hearing loss requires medication, including vasodilators, adenine nucleoside triphosphates, vitamin B and other drugs, and should be removed from the noise environment. Depending on the degree of hearing loss, patients with advanced disease may choose to wear hearing aids, implant vibrating sound bridges, or cochlear implants.

1. General**.

In the early stage, vitamins and vasodilator drugs can be used at the same time as recuperation**, if the disease has been long, the spiral and spiral ganglion cells have been degenerated, it is difficult to work, and those who affect daily life can be equipped with hearing aids, implantation of vibrating sound bridges or cochlear implants.

2. Drugs**.

Noise-induced hearing loss can generally be treated with vasodilators, such as ginkgo biloba extract injection; drugs that improve microcirculation, such as dome chuandozine; energy mixture, adenine nucleoside triphosphate; Vitamin B1, B12 and other drugs are symptomatic**.

3. Surgery**.

Noise-induced hearing loss does not require surgery**.

Long-term exposure to noise can have a serious impact on the human body, most notably hearing. Long-term noise pollution can cause tinnitus, which can lead to deafness, and it is also easy to cause symptoms such as irritability. If you work in a noisy environment for a long time, it is recommended to go to the hospital regularly for physical check-ups.

If this is the case for a long time, it is also advisable to check whether it is serious.

Noise damage to the ear is related to its intensity and time. When the noise reaches 120 decibels or more, it will immediately cause ear pain and other phenomena, which will immediately cause acute damage and affect the body system. The noise decibel is not strong, and the time spent in the noise is long, and the hearing damage caused by this condition is more common.

At the beginning of exposure to noise, hearing loss, there will be tinnitus, and hearing will return after leaving the noise, which is the earliest symptom; Continued exposure to noise can lead to irreversible chronic damage over time.

Hazards of noise: 1 Damage to the auditory organs, manifested as noise-based hearing damage, can cause tinnitus and hearing loss. 3. Damage to the nervous system can cause blindness, neurasthenia cause headache and dizziness.

If you are in a state of noise for a long time, you will have insomnia. 3. Damage to the cardiovascular system can cause changes in heart rate, which can cause an increase in blood pressure. 4. Damage to the digestive system can also cause poor appetite and loss of appetite.

5 Damage to the endocrine system can cause endocrine disorders, and then cause some discomfort in the body. Noise usually harms the human body in the following aspects: 1. Seriously affect the function of the central nervous system, resulting in nervous system weakness and nervous system dysfunction, such as long-term noise will lead to insomnia, dreaminess, poor rest and sleep conditions, or poor quality of rest and sleep, shortened deep sleep phase, prolonged light sleep phase, or neuropathic headache, migraine, insomnia, dreaminess and other clinical symptoms and manifestations; 2. Symptoms of cardiac insufficiency, which will lead to coronary ischemia and transient vasospasm under the harm of noise for a long time, resulting in chest tightness, shortness of breath, palpitations, precordial discomfort and other conditions; 3. Noise can also cause irreversible damage to the ear canal and auditory system, such as leading to neural tinnitus or even nervous deafness.

When the noise intensity exceeds 85 90db, it will cause damage to the auditory hair cells in the cochlea, and the degree of damage is related to the following factors:

1. Noise intensity, the frequency of noise deafness increases with the increase of noise intensity.

Second, the time and mode of contact: continuous contact is more damaging than intermittent contact. The longer the exposure to noise, the more severe the hearing loss, and the closer to the source of the noise, the more susceptible to hearing damage.

Three body susceptibility: the elderly and frail, those who have suffered from sensorineural hearing loss, and those who are susceptible to noise damage.

Being in a noisy environment for a long time is harmful to hearing. Prolonged noise can cause hallucinations to a person's hearing and is harmful to hearing.

If you don't pay attention, your hearing will be impaired, but also on your own emotions. Sleep quality and so on can be impaired.