The main harm of noise to the human body is damage to the auditory system. When the noise intensity exceeds 100 decibels, it can cause hearing damage. Mild hearing impairment mainly manifests as mild tinnitus. If it develops further, it can affect speech and hearing to a certain extent, causing hearing difficulties in work, study, and life. Sometimes a strong noise can cause temporary total deafness in both ears, as well as severe tinnitus and dizziness. In addition, noise also affects other systems of the human body, mainly manifesting as headaches, dizziness, insomnia, dreaminess, memory loss, and even unstable blood pressure or insufficient blood supply to the extremities, nutritional disorders, and irregular heartbeats. The adverse effects of noise are more serious on infants, young children, teenagers and pregnant women.

The commonly used unit for expressing noise is "decibel". l～140 decibels is the full range of human hearing. 1 decibel is the smallest sound intensity that can be distinguished by hearing, while 140 decibels is the maximum that the human ear can tolerate. Noise in the home mainly comes from household appliances such as audio equipment and televisions. The key to preventing noise hazards is to control and eliminate noise sources. People who already have sensorineural deafness or severe neurasthenia should pay more attention to avoid noise

What is noise? What harm does noise pollution do to people?

Noise is a type of sound that causes irritation or is too loud to harm human health.

Noise pollution mainly comes from transportation, vehicle horns, industrial noise, construction, social noise such as concert halls, loudspeakers, morning markets and people talking loudly.

Noise brings physical and psychological harm to people mainly in the following aspects: Damage to hearing. Tests have shown that when people continuously listen to the sound of motorcycles, their hearing will be damaged after 8 hours; if they are in a rock concert hall, their hearing will be damaged after half an hour. Harmful to the human cardiovascular system, my country's survey on urban noise and residents' health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%. Affects the human nervous system, making people impatient and irritable. Affects sleep and causes fatigue.

What does the decibel value represent? The decibel value represents a unit of measurement of sound.

The sound that the human ear can just hear is 0-10 decibels. Every 10 decibel value increase means that the volume increases by 10 times, that is, from 1 dB to 20 dB, it means that the volume increases by 100 times.

A person whispers at about 30 decibels and speaks loudly at 60-70 decibels. The decibel value below 60 is the harmless zone, 60-110 is the transition zone, and the decibel value above 110 is the harmful zone. Car noise is 80-100 decibels, and TV sound can reach 85 decibels. People who live in a noise environment of 85-90 decibels for a long time will suffer from "noise disease". The sound of a chainsaw is 110 decibels. The sound of a jet aircraft is about 130 decibels. When the sound reaches 120 decibels, the human ear will feel pain. It affects the lives of people and living things and causes people to get diseases

The dangers of noise pollution

Pregnant women who are exposed to a noise environment exceeding 50 decibels for a long time will cause endocrine gland dysfunction and cause Mental stress and endocrine system disorders occur. In severe cases, it will increase blood pressure, cause fetal hypoxia and ischemia, cause fetal malformation and even miscarriage. High-decibel noise can damage the fetal hearing organ, causing some areas to be affected. Affects brain development, leading to mental retardation in children.

The malignant stimulation of noise seriously affects our sleep quality and can lead to neurasthenic symptoms such as dizziness, headache, insomnia, dreaminess, memory loss, and lack of concentration, as well as nausea, vomiting, stomach pain, Gastrointestinal symptoms such as abdominal bloating and sluggish appetite. Nutritionist studies have found that noise can also increase the consumption of essential nutrients such as vitamins, trace elements nitrogen, glutamic acid, and lysine in the human body, affecting health; noise can increase adrenal gland secretion, speed up the heartbeat, and Increased blood pressure can easily lead to heart attacks; at the same time, noise can reduce saliva, gastric juice secretion, and gastric acid, leading to gastric ulcers and duodenal ulcers. Harmful to the human cardiovascular system, my country's survey on urban noise and residents' health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%. Affects the human nervous system, making people impatient and irritable. Affects sleep and causes fatigue.

Methods

1 Create soundproof forests

2 Move enterprises with serious noise pollution out of urban areas

3 Prevention and transmission at the source Process reduction

Noise brings physical and psychological harm to people mainly in the following aspects:

1. Damage to hearing. Relevant data show that: when people continuously listen to the sound of motorcycles, their hearing will be damaged after 8 hours; if they are in a rock concert hall, their hearing will be damaged after half an hour; if they live in a noise environment above 80 decibels, their hearing will be damaged. The possibility of causing deafness can reach 50%.

2. Noise damages vision

Everyone knows that noise can seriously affect the hearing organs and even cause hearing loss. However, there is a subtle internal "connection" between the ears and eyes. When noise acts on the hearing organ, it will also "spread" the visual organ through the action of the nervous system, weakening people's vision.

Studies have pointed out that noise can cause abnormalities in color vision and color vision.

The survey found that among 80 workers exposed to steady-state noise, as many as 80% experienced reduced vision in red, green, and white colors, an increase of 85% compared with the control group.

The impact of noise on vision can be seen everywhere in daily life. For example, when shopping in a quiet and bright store, you appear happy and calm, and you can be careful and complete when shopping. When shopping when fast-paced pop music is playing loudly from loudspeakers (some so-called pop music is just deafening noise), people often feel restless, dizzy, and even make confused transactions. The cause is not carefully identified and not satisfactory. The main reason is that the noise affects vision.

3. Harmful to the human cardiovascular system. my country’s survey on urban noise and residents’ health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%.

4. It affects the human nervous system and makes people impatient and irritable.

Scientific research has found that noise can stimulate the nervous system and inhibit it. People who work in a noisy environment for a long time can also cause neurasthenia syndrome (such as headaches, dizziness, tinnitus, memory loss, and reduced vision). wait).

5. Affect sleep and cause fatigue.

The harm of noise to sleep: Sudden noise at 40 decibels can wake up 10% of people, and when it reaches 60 decibels, it can wake up 70% of people.

From a psychological perspective, noise will first cause psychological symptoms such as poor sleep, inability to concentrate, and decreased memory, and then lead to upset mood, emotional instability, and even reduced tolerance, bad temper, and finally Produce a series of diseases such as hypertension, ulcers, and diabetes. In psychology, this disease is called psychosomatic disease, which means physical disease caused by psychological factors. Dr. Li also introduced that the probability of psychosomatic diseases caused by noise is quite high, and treatment is difficult and requires a long recovery period, which brings great trouble to people's daily life and work.

The direct harm of noise to the human body is as follows: destroying human nerves, causing blood vessels to spasm, accelerating the metabolism of hair cells, thereby accelerating the aging period. In terms of clinical diagnosis: the patient's external manifestations are poor mood, irritability, and speaking loudly; the most common symptoms are tinnitus, earache, hearing loss, dizziness, headache, and noise-induced deafness; for those who are suffering from For infants and young children in the growing and developing stage, the harm of noise is particularly obvious. Babies who are often exposed to noisy environments not only suffer hearing damage, but their intellectual development is also affected. Since noise causes sensorineural damage and hair cell damage, it is difficult to repair it.

Relevant experts believe that noise is very harmful to the human body, and the amount of noise (decibel) has an impact on the human body. : For example, 0-50 decibels: comfort, whispering; 50-90 decibels: hindering sleep, sadness, anxiety; 90-130 decibels: ear itching, ear pain; above 130 decibels: eardrum rupture, deafness.

The harm of noise

Near the airport, hens will not lay eggs; the music played by the band is extremely harsh and can make the audience faint suddenly. These are all caused by noise. From a biological point of view, any unwanted and irritating sound is noise. From a physical point of view, noise refers to sounds with chaotic and irregular sound intensity and frequency. Environmental noise mainly comes from transportation, industrial production, construction and social life. In cities, traffic noise has the greatest impact on residents. The main effects and hazards of noise include: First, it affects hearing. The degree of hearing damage is related to the time of exposure to the noise environment. In a noise environment above 85 decibels, the incidence of noise-induced deafness can reach 5%. Second, it affects study and work and interferes with sleep. In a noisy environment, the doctor's accuracy rate when auscultating patients is only 8%. If the noise reaches 100 to 200 decibels, almost everyone will wake up from their sleep. The third is affecting cardiovascular function and endocrine system. This is mainly manifested in tachycardia, irregular heartbeat, and high blood pressure. Fourth, it harms the central nervous system. In a strong noise environment, symptoms such as headache, tinnitus, dreaminess, memory loss, and general weakness may occur. Fifth, it affects children's intellectual development. Someone has done a survey and found that the intelligence of children in a noisy environment is 20% lower than that of children in a quiet environment.

Tests show that people will suffer from hearing loss after listening to the sound of motorcycles for 8 hours. If you stay in a rock concert for half an hour, your hearing will be damaged, which is harmful to your cardiovascular system. my country's survey on urban noise and residents' health shows that for every decibel increase in regional noise, the incidence of hypertension in the region increases by 3%. Noise is responsible for 3 out of 4 cases of neurosis in France. Noise is responsible for 35% of suicides in Paris and Tokyo. A further 35% of crime-related crimes are related to noise. Different noises have different effects on people. For example, intermittent noise has a greater impact on people than continuous noise. Noise at night has a greater impact than noise during the day. The noise from home appliances affects people's sleep quality and quantity, which in turn affects people's work efficiency and has adverse effects on health. According to statistics, 84% of the population in the United States is severely disturbed by noise, and 20% of the population is under the threat of hearing damage from strong noise.

Through a series of examples, we can see that noise is increasingly affecting our lives, work, and study, and can even cause social conflicts and cause economic losses. Noise control is very important. We can do a small experiment: there are two classes of students, one class A is set up in a noisy environment, and the other class B is set up in a quiet environment. Everyone learns the same course together, with the same teacher. Under the guidance of the teacher, after a month of study, you will find that the listening efficiency of Class A is far less than that of Class B. What is the reason for this? The results reflected in the above experiments are very obvious. Noise can cause great damage to human hearing. Noise is widely affecting people's various activities. In the past, people often regarded deafness as a common disease of the elderly, but scientific experiments have proved that people are not necessarily deaf when they are old, but noise is an "invisible killer" that causes people's hearing to weaken or even become deaf. It can be seen that noise is very harmful to us, so it is urgent to understand the harm of noise and stop it. It affects the lives of people and living things and causes people to get diseases

The dangers of noise pollution

Pregnant women who are exposed to a noise environment exceeding 50 decibels for a long time will cause endocrine gland dysfunction and cause Mental stress and endocrine system disorders occur. In severe cases, it will increase blood pressure, cause fetal hypoxia and ischemia, cause fetal malformation and even miscarriage. High-decibel noise can damage the fetal hearing organ, causing some areas to be affected. Affects brain development, leading to mental retardation in children.

The malignant stimulation of noise seriously affects our sleep quality and can lead to neurasthenic symptoms such as dizziness, headache, insomnia, dreaminess, memory loss, and lack of concentration, as well as nausea, vomiting, stomachache, Gastrointestinal symptoms such as abdominal bloating and sluggish appetite. Nutritionists have found that noise can also increase the consumption of essential nutrients such as vitamins, trace elements nitrogen, glutamic acid, and lysine in the human body, affecting health; noise can increase adrenal gland secretion, speed up the heartbeat, and Increased blood pressure can easily lead to heart attacks; at the same time, noise can reduce saliva, gastric juice secretion, and gastric acid, leading to gastric ulcers and duodenal ulcers. Harmful to the human cardiovascular system, my country's survey on urban noise and residents' health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%. Affects the human nervous system, making people impatient and irritable. Affects sleep and causes fatigue.

Methods

1 Create soundproof forests

2 Move enterprises with serious noise pollution out of urban areas

3 Prevention and transmission at the source Process reduction

Noise brings physical and psychological harm to people mainly in the following aspects:

1. Damage to hearing. Relevant data show that: when people continuously listen to the sound of motorcycles, their hearing will be damaged after 8 hours; if they are in a rock concert hall, their hearing will be damaged after half an hour; if they live in a noise environment above 80 decibels, The possibility of causing deafness can reach 50%.

2. Noise damages vision

Everyone knows that noise can seriously affect the hearing organs and even cause hearing loss. However, there is a subtle internal "connection" between the ears and eyes. When noise acts on the hearing organ, it will also "spread" the visual organ through the action of the nervous system, weakening people's vision.

Studies have pointed out that noise can cause abnormalities in color vision and color vision. The survey found that among 80 workers exposed to steady-state noise, as many as 80% experienced reduced vision in red, green, and white colors, an increase of 85% compared with the control group.

The impact of noise on vision can be seen everywhere in daily life. For example, when shopping in a quiet and bright store, you appear happy and calm, and you can be careful and complete when shopping. When shopping when fast-paced pop music is playing loudly from loudspeakers (some so-called pop music is just deafening noise), people often feel restless, dizzy, and even make confused transactions. The cause is not carefully identified and not satisfactory. The main reason is that the noise affects vision.

3. Harmful to the human cardiovascular system. my country’s survey on urban noise and residents’ health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%.

4. It affects the human nervous system and makes people impatient and irritable.

Scientific research has found that noise can stimulate the nervous system and inhibit it. People who work in a noisy environment for a long time can also cause neurasthenia syndrome (such as headaches, dizziness, tinnitus, memory loss, and reduced vision). wait).

5. Affect sleep and cause fatigue.

The harm of noise to sleep: Sudden noise at 40 decibels can wake up 10% of people, and when it reaches 60 decibels, it can wake up 70% of people.

From a psychological perspective, noise will first cause psychological symptoms such as poor sleep, inability to concentrate, and decreased memory, and then lead to upset mood, emotional instability, and even reduced tolerance, bad temper, and finally Produce a series of diseases such as high blood pressure, ulcers, and diabetes. In psychology, this disease is called psychosomatic disease, which means physical illness caused by psychological factors.

Dr. Li also introduced that the probability of psychosomatic diseases caused by noise is quite high, and treatment is difficult and requires a long recovery period, which brings great trouble to people's daily life and work.

The direct harm of noise to the human body is as follows: destroying human nerves, causing blood vessel spasm, accelerating the metabolism of hair cells, thereby accelerating the aging period. In terms of clinical diagnosis: the patient's external manifestations are poor mood, irritability, and speaking loudly; the most common symptoms are tinnitus, earache, hearing loss, dizziness, headache, and noise-induced deafness; for those who are suffering from For infants and young children in the growing and developing stage, the harm of noise is particularly obvious. Babies who are often exposed to noisy environments not only suffer hearing damage, but their intellectual development is also affected. Since noise causes sensorineural damage and hair cell damage, it is difficult to repair it.

Relevant experts believe that noise is very harmful to the human body, and the amount of noise (decibel) has an impact on the human body. : For example, 0-50 decibels: comfort, whispering; 50-90 decibels: hindering sleep, sadness, anxiety; 90-130 decibels: ear itching, ear pain; above 130 decibels: eardrum rupture, deafness.

It affects the lives of people and living things and causes people to get diseases

The dangers of noise pollution

Pregnant women who are exposed to a noise environment exceeding 50 decibels for a long time will cause Endocrine gland dysfunction, mental stress and endocrine system disorders. In severe cases, it will increase blood pressure, cause fetal hypoxia and ischemia, cause fetal malformations and even miscarriage. High-decibel noise can damage the fetal hearing organ, causing some areas to be affected. Affects brain development, leading to mental retardation in children.

The malignant stimulation of noise seriously affects our sleep quality and can lead to neurasthenic symptoms such as dizziness, headache, insomnia, dreaminess, memory loss, and lack of concentration, as well as nausea, vomiting, stomach pain, Gastrointestinal symptoms such as abdominal bloating and sluggish appetite. Nutritionist studies have found that noise can also increase the consumption of essential nutrients such as vitamins, trace elements nitrogen, glutamic acid, and lysine in the human body, affecting health; noise can increase adrenal gland secretion, speed up the heartbeat, and Increased blood pressure can easily lead to heart attacks; at the same time, noise can reduce saliva, gastric juice secretion, and gastric acid, leading to gastric ulcers and duodenal ulcers. Harmful to the human cardiovascular system, my country's survey on urban noise and residents' health shows that: for every decibel increase in regional noise, the incidence of hypertension increases by 3%. Affects the human nervous system, making people impatient and irritable. Affects sleep and causes fatigue.

Methods

1 Create soundproof forests

2 Move enterprises with serious noise pollution out of urban areas

3 Prevention and transmission at the source Process reduction

From a psychological perspective, noise will first cause psychological symptoms such as poor sleep, inability to concentrate, and decreased memory, and then lead to upset mood, emotional instability, and even reduced tolerance and bad temper. , and eventually produce a series of diseases such as hypertension, ulcers, and diabetes. In psychology, this disease is called psychosomatic disease, which means physical disease caused by psychological factors. Dr. Li also introduced that the probability of psychosomatic diseases caused by noise is quite high, and treatment is difficult and requires a long recovery period, which brings great trouble to people's daily life and work.

The direct harm of noise to the human body is as follows: destroying human nerves, causing blood vessels to spasm, accelerating the metabolism of hair cells, thereby accelerating the aging period. In terms of clinical diagnosis: the patient's external manifestations are poor mood, irritability, and speaking loudly; the most common symptoms are tinnitus, earache, hearing loss, dizziness, headache, and noise-induced deafness; for those who are suffering from For infants and young children in the growth and development stage, the harm of noise is particularly obvious. Babies who are often exposed to noisy environments not only suffer hearing damage, but their intellectual development is also affected.

Since noise causes sensorineural damage and hair cell damage, it is difficult to repair it.