Noise is certain sound vibrations. Now every second person not only experiences fatigue every day, but also feels a sharp headache about once a week. What is it really about? Noise can have both positive and negative effects on human he alth. For example, it has recently become popular to use white noise to calm the child and normalize his sleep.
Negative effects of noise on the body
The negative impact depends on how often and for how long a person is exposed to high frequency sounds. The harm of noise is absolutely not inferior to its benefits. Noise and its impact on humans have been studied since ancient times. It is known that sound torture was often used in ancient China. Such an execution was considered one of the most cruel.
Scientists have proven that high-frequency sounds adversely affect mental development. In addition, people who are under constant noise stress get tired quickly, suffer from frequent headaches, insomnia, and loss of appetite. Over time, such people develop cardiovascular diseases, mental disorders, metabolic disorderssubstances and the work of the thyroid gland.
In large cities, noise has an irreversible negative impact on the human body. Today, a huge number of environmentalists are trying to cope with this problem. To isolate your home from the noise irritants of the big city, install soundproofing.
Noise level
Noise in decibels is the amount of sound perceived by a person's hearing aid. It is believed that human hearing perceives sound frequencies in the range of 0-140 decibels. Sounds of the lowest intensity affect the body in a favorable way. These include the sounds of nature, namely rain, waterfalls and the like. Acceptable is the sound that does not harm the human body and the hearing aid.
Noise is a general term for sounds of different frequencies. There are generally accepted standards for the sound level in public and private places where a person is located. For example, in hospitals and residential areas, the available sound standard is 30-37 dB, while industrial noise reaches 55-66 dB. However, often in densely populated cities, sound vibrations reach a much higher level. Doctors believe that a sound that exceeds 60 dB causes nervous breakdowns in a person. It is for this reason that people living in large cities experience chronic fatigue and frequent headaches. Sounds above 90 decibels contribute to hearing loss, and higher frequencies can be fatal.
The positive impact of sound
Exposure to noiseare also used for medicinal purposes. Low-frequency waves improve mental and mental development and emotional background. As mentioned earlier, such sounds include those emitted by nature. The effect of noise on humans is not fully understood, but it is believed that the hearing aid of an adult can withstand 90 decibels, while the eardrums of children can withstand only 70.
Ultra- and infrasounds
Infra- and ultrasound has the most negative impact on the human hearing aid. It is impossible to protect oneself from such noise, since only animals hear these vibrations. Such sounds are dangerous because they affect the internal organs and can cause damage and rupture.
The difference between sound and noise
Sound and noise are very similar words. However, there are still differences. Sound refers to everything that we hear, and noise is the sound that a certain person or group of people does not like. It could be someone singing, a dog barking, a jackhammer, industrial noise, and lots of annoying noises.
Varieties of noise
Noise is divided, according to the spectral characteristic, into ten varieties, namely: white, black, pink, brown, blue, purple, gray, orange, green and red. They all have their own characteristics.
White noise is characterized by a uniform distribution of frequencies, and pink and red by their increase. At the same time, black is the most mysterious. In other words, black noise is silence.
Noise sickness
The impact of noise on human hearing is enormous. In addition to constant headaches and chronic fatigue, noise disease can develop from high-frequency waves. Doctors diagnose it to the patient if he complains of a significant hearing loss, as well as changes in the functioning of the central nervous system.
The initial signs of noise disease are ringing in the ears, headache, and unreasonable chronic fatigue. Hearing damage is especially dangerous when in contact with ultra- and infrasounds. Even after a short exposure to such noise, complete hearing loss and rupture of the eardrums can follow. Signs of defeat from this type of noise are a sharp pain in the ears, as well as their congestion. With such signs, you should immediately contact a specialist. Most often, with prolonged exposure to noise on the auditory organ, there is a violation of the nervous, cardiovascular activity and vegetative-vascular dysfunction. Excessive sweating also often signals a noise disease.
Noise disease is not always treatable. It is often possible to restore only half of the auditory capabilities. To eliminate the disease, experts recommend stopping contact with high-frequency sounds, and prescribing medications.
There are three degrees of noise sickness. The first degree of the disease is characterized by instability of the hearing aid. At this stage, the disease is easily treatable, and after rehabilitation, the patient can again come into contact withnoise, but must undergo an annual examination of the ears.
The second degree of the disease is characterized by the same symptoms as the first. The only difference is the more thorough treatment.
The third stage of noise disease requires more serious intervention. The cause of the development of the disease is discussed individually with the patient. If this is a consequence of the patient's professional activities, the option of changing jobs is considered.
The fourth stage of the disease is the most dangerous. The patient is advised to completely eliminate the effects of noise on the body.
Noise disease prevention
If you frequently interact with noise, for example at work, you need to undergo an annual medical examination by a specialist. This will allow early diagnosis and elimination of the disease. It is believed that teenagers are also affected by noise disease. The reason for this is visiting clubs and discos where the sound level exceeds 90 decibels, as well as often listening to music in headphones at a high volume level. In such adolescents, the level of brain activity decreases, memory deteriorates.
Industrial sounds
Industrial noise is one of the most dangerous, because such sounds accompany us most often in the workplace, and it is almost impossible to exclude their impact.
Industrial noise occurs due to the operation of production equipment. The range of sound waves ranges from 400 to 800 Hz. The specialists conducted a survey of the gener althe condition of the eardrums and auricles of blacksmiths, weavers, boilermakers, pilots and many other workers who interact with industrial noise. It was found that such people have impaired hearing, and some of them were diagnosed with diseases of the inner and middle ear, which could later lead to deafness. To eliminate industrial sounds or to reduce them, improvement of the machines themselves is required. To do this, replace noisy parts with silent and shockless ones. If this process is not available, another option is to move the industrial machine to a separate room, and its console to a soundproof room. It is not uncommon to protect against industrial noise using noise suppressors, which protect against sounds that cannot be reduced. Such protection includes earplugs, headphones, helmets and others.
The effect of noise on the children's body
In addition to bad ecology and a host of other factors, vulnerable children and adolescents are also affected by noise. Just like in adults, children experience deterioration in hearing and organ function. An unformed organism cannot protect itself from sound factors, therefore its hearing aid is the most vulnerable. To prevent hearing loss, it is necessary to conduct a physical examination with a specialist as often as possible. The sooner the disease is detected, the easier and faster the treatment will be.
Noise is a phenomenon that accompanies us throughout our lives. We may not notice its impact or eventhink about it. Is it correct? Studies have shown that the headache and fatigue that we usually associate with a hard day at work is often associated with noise factors. If you do not want to suffer from constant poor he alth, you should think about your protection from loud sounds and limit contact with them. Follow all recommendations for the preservation and restoration of hearing. Stay he althy!
