In the urban environment the person is constantly influenced by noise irritants. The knock of heels of neighbors on the landing, sounds of the moved furniture, shouts of the children playing in the street, noise of cars and trains makes impact on a human body.
Instruction
1. Noise negatively influences the person, and his negative impact depends on the loudness and duration. The strong and sharp sound will bring much more harm, than a constant quiet rumble. Acoustical irritants are capable to influence an emotional condition of the person and motivation of his acts. Noise is capable to become the reason of intra family dissonance, to spoil the working atmosphere.
2. The noise indoors is higher and more various, the quicker the person loses working capacity. It is difficult to it to keep the attention on an objective. In a noisy situation in particular it becomes difficult to perceive new information, to react quickly in the changing circumstances.
3. Most of all abilities of children suffer from noise. Because of the fact that foreign sounds muffle their "inner voice" the kids living in noisy areas have difficulties with reading and can lag behind in intellectual development peers.
4. Noise not only influences emotional, but also a physical condition of the person. At the people who lived in the megalopolis more than ten years the risk of development of cardiovascular diseases, in particular a hypertension and ischemia sharply increases.
5. Digestive tract is also subject to negative impact of acoustical irritants. At the people who are submitted noise influence the internal secretion falls apart, often there are gastritises and ulcers.
6. Also nervous system suffers from sound irritants. At people the tendency to nervoza, long depressions is shown, there are frequent headaches. Most often strong production noise, for example, at the plants becomes the reason of such symptoms.
7. Strong noise interferes with normal physical development of children and teenagers. They accelerate a metabolism, blood supply of extremities worsens, and muscles remain in constant tension.