Although magnets are harmful to the human body
But negligible
What is electromagnetic pollution? What hazards does it have?
Electromagnetic radiation pollution, also known as electronic fog pollution, electromagnetic wave pollution, is high-voltage lines, substations, radio stations, television stations, radar stations, electromagnetic wave transmission towers and electronic instruments, medical equipment, office automation equipment and microwave ovens, radios, televisions, computers and mobile phones, etc. The electromagnetic waves of various wavelengths and frequencies generated by household appliances when they work, these electromagnetic waves fill the space and can penetrate a variety of substances including the human body. Excessive radiation doses can damage or kill human cells in a large area.
What are the hazards of electromagnetic radiation to the human body? "The harm of electromagnetic radiation to the human body is divided into thermal effect, non-thermal effect and cumulative effect." The so-called thermal effect is the 'heating' effect of high-frequency electromagnetic waves on the cells of the biological body, causing the body temperature to rise. The role of tissue is often invisible on the surface of the body, but the internal tissue has been severely 'burned'. The impact on the cardiovascular system is palpitations, head swelling, insomnia, menstrual disorders in some women, bradycardia, decreased cardiac blood volume, Sinus arrhythmia, visceral cell disease, leukopenia, decreased immune function, etc.; the impact on the visual system is decreased vision, causing cataracts, etc.; the impact on the reproductive system is decreased sexual function, decreased sperm quality in men, and spontaneous abortion in pregnant women , fetal malformations, etc. "
The non-thermal effect is the effect of low-frequency waves, that is, after the human body is radiated by electromagnetic waves, the body temperature does not increase significantly, but the inherent weak electromagnetic field of the human body has been disturbed, which will also cause serious damage to the human body. The cumulative effect is that the human body is too late to recover and is damaged by radiation, and it becomes a permanent morbidity for a long time.
Concerns about electromagnetic pollution are not unfounded. As early as 2000, the State Environmental Protection Administration completed the first nationwide survey of electromagnetic radiation pollution sources. The results of the survey showed that electromagnetic radiation emitted by radio communication and radio and television transmission systems has become a new public hazard. China Consumers Association issued No. 9 Consumer Warning on August 6, 2001: Daily life must be protected from electromagnetic radiation. The State Economic and Trade Commission 199975 document clearly pointed out that due to the existence of electromagnetic radiation in the use of computers, long-term use will have a certain impact on human health, and effective protective measures should be taken to avoid and reduce the impact of electromagnetic radiation on human health. influences.
With economic development and technological progress, man-made electromagnetic environment will be unavoidable. Experts have long predicted that man-made electromagnetic energy in urban space will increase at a rate of 7% to 14% per year. By 2000, the electromagnetic energy density of urban environment has increased by 26 times compared with the 1970s, and it will increase to 700 times by 2025. With the progress of science, the harm of electromagnetic pollution will be further revealed.