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 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.

·Affect sleep and cause 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 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 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.