Toy also harms listening?Noise hazards cannot be ignored!

Audit expert: Yuan Xiandao

Beijing Anzhen Hospital, Capital Medical University

Deputy Chief Physician

As industrial technology becomes more and more developed, the environmental noise around us is becoming more and more complicated. If it is in a noisy environment for a long time, it will cause great harm to our health, especially for young people in the development stage. Essence

Source 丨 Weibo Screenshot

Data surveys show that there are more than 30,000 new acute deaf patients in my country each year. In recent years, the incidence of noise deafness in children and adolescents has increased year by year. Even the electric toys in the hands of children may hurt the child's hearing.

What is noise deafness?

First of all, we need to clarify what noise is. In physics, noise is all irregular signals; from a physiological point of view, noise is all the sounds that hinder our work, study, rest, and interfere with the sounds we are going to hear. The noise can be divided into the following four categories according to the characteristics of the sound source:

• Industrial noise: In industrial production, the noise generated by production equipment and auxiliary equipment, the noise level in the factory workshop is about 75-105 decibels.

• Transportation noise: Transportation noise is derived from the ground, water, and air. These sound sources have a large fluidity and have a wide range of affecting area.

• Construction noise: noise, such as transportation materials, mining, mixing and other links during the construction process. These noises are basically more than 90 decibels.

• Social life entertainment noise: refers to the noise generated by entertainment venues, air conditioners, washing machines, TVs, toys, etc. This type of noise is generally below 80 decibels.

Due to long -term contact noise, deafness caused by cochlear injury is called noise deafness. Noise deafness belongs to neurotic deafness, mainly clinically manifested as a high -frequency hearing curve of double ears or single ear decline.

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The pathological hearing damage caused by noise to hearing organs must reach a certain noise strength. When the noise is 40-60 decibels, the noise is doubled for each 3rd decibels, and the energy contains the noise is doubled. If you have been in the noise environment of 85-90 decibels that exceed the standard protection standards, our hearing system will be tense and difficult to relax at all times. Long -term continuous fatigue state will cause high frequency (3000-6000Hz) hearing loss Essence

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The three bands of the normal language frequency of the human body are 500Hz, 1000Hz, and 2000Hz. When our hearing is further damaged, the high -frequency hearing damage will expand to the language frequency band, showing subjective hearing disorders, that is, noise deafness.

Our cochlea contains a large amount of slender hair cells. Slimber cells can convert sound waves into neuros signals and then pass to the brain. Under the condition of long -term use of headphones or headphones, it will cause damage to slender hair cells and cause abnormal neuros signal output, which will cause neurological tinnitus symptoms, which may cause permanent deafness.

Choices (section of the worm shaft)

Source ｜ Sohu

Noise will not only cause damage to our hearing system, but also affect the nervous system, endocrine system, cardiovascular system, visual organs, digestive system, etc. The noise has been repeatedly stimulated to our nervous system for a long time, causing the cerebral cortex to excite and suppress balance disorders, cerebral vascular dysfunction, which causes neurasthenia syndrome. Headache, dizziness, tinnitus, fatigue, and poor sleep can occur. It will cause memory, thinking, learning ability, and reading ability.

Prevention and treatment of noise deafness

Noise will cause great harm to our health. How to effectively avoid the harm of noise?

There are three main ways to avoid noise. The first is to reduce noise and noise at the sound source to avoid noise emitting. However, in actual life, it is impossible to completely eliminate noise. When we usually watch TV and wearing headphones, we must pay attention not to turn the sound too much, and let the ears rest in time.

Our nervous system or listening organs maintain physiological tension for about 45 minutes. Therefore, when watching TV and wearing headphones, take a few minutes every 45 minutes. The electric fans and air -conditioning blades in the home should be cleaned frequently to prevent the uneven accumulation of dust caused the shaft to cause unstable items, resulting in noise to produce the oscillation. The washing machine can use a rubber pad to reduce the noise generated by shaking at the bottom.

Source ｜ Pixabay

The second method is to block noise transmission. Noise is spreading in a sound waves. Propaganda must rely on the medium, and vacuum is the best way to block sound waves. Therefore, house decoration can use vacuum glass and vacuum soundtrack boards.

In addition, sound -absorbing materials can well block noise spread, and more flowers and green plants in the home can also play a certain role of noise reduction. A more soft carpet, window curtain, sofa, etc. can effectively decay sound waves, and play noise reduction and reduction reduction. The effect of noise. On the contrary, some hard and smooth furniture furnishings can basically have no loss of reflex sound waves to exacerbate the noise environment.

The third method is artificially blocking noise at the ear, such as wearing earmuffs, earplugs, etc.

The hard and smooth floor will exacerbate noise

Source ｜ PEXELS

If noise deafness has appeared, how should I treat it? First, you must seek medical treatment in time. Treatment according to the doctor's diagnosis and suggestions.

Early patients with noise deafness can be conservatively treated with some drugs with vascular expansion and nutritional nerves.Patients with noise deafness will be inexplicably irritable, panic, anxiety, etc. due to hearing damage, and emotional ups and downs. At this time, you should actively seek psychological enlightenment.In addition, patients should pay attention to rest, avoid staying up late, and diet lightly.If the patient has undergone systematic treatment and has not seen obvious effects, in order to ensure normal daily communication life, under the guidance of a doctor, you can relieve noise deafness by wearing hearing aids.

Wear hearing aid

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Finally, I hope that everyone will try to stay away from noise in daily life and maintain healthy living habits to protect our fragile ears and avoid hearing damage.

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