The results of experimental research and investigation and observation show that the health hazards of electromagnetic radiation are multifaceted and complex, the main hazards are as follows: 1. Hazards to the central nervous system The nervous system is very sensitive to the role of electromagnetic radiation, and its low intensity repeated effects, the central nervous system function changes, neurasthenia syndrome, the main manifestations of headache, dizziness, weakness, memory, memory loss, sleep disorders (insomnia), and the effects of electromagnetic radiation are very sensitive to the role of electromagnetic radiation. The main manifestations are headache, dizziness, weakness, memory loss, sleep disorders (insomnia, dreaminess or drowsiness), daytime dozing, agitation, excessive sweating, palpitations, chest tightness, hair loss, etc. Especially difficulty in falling asleep, weakness, sweating and memory loss are more prominent. All these indicate that the brain is dominated by inhibitory processes. Therefore, in addition to the above syndromes, the victim also shows short-term memory loss, prolonged visual-motor response time, poor hand-cerebral coordination, slower speed of number marking, and more errors. 2. Harm to the body's immune function, so that the body's resistance is reduced. Animal experiments and studies and surveys on the effects of radiation on the population have shown that the percentage of bacteria engulfed by human white blood cells and the number of bacteria engulfed have decreased. In addition to the long-term effects of electromagnetic radiation, the formation of antibodies is significantly inhibited. 3. The effect on the cardiovascular system by electromagnetic radiation effect of people, often occurs hemodynamic disorders, vascular permeability and tension decreased. As a result of the effects on the vegetative nervous system, people tend to show symptoms of bradycardia, and a few show tachycardia. Victims show fluctuation of blood pressure, which starts to rise, then returns to normal, and finally becomes low; the electrocardiogram shows a decrease in the voltage of the R-T wave, which is an allergic reaction of the vagus nerve and the result of myocardial trophic disorders; the prolongation of the P?Q interval and the widening of the P wave indicate that the atrioventricular conduction is not working well. In addition, long-term exposure to electromagnetic radiation, its cardiovascular system diseases, will be earlier and easier to promote its occurrence and development. 4. Effects on the blood system in the role of electromagnetic radiation, the peripheral blood image can appear in the instability of white blood cells, mainly downward tendency, the white blood cell reduction. Erythrocyte production is inhibited, the appearance of reticulated erythrocyte reduction. The results of health surveys of people who operate radar show that most of them show a decrease in white blood cells. In addition, when the radio waves and radiation at the same time when the human body, the role of the blood system than a single factor can produce more obvious harm. 5. Reproductive system and genetic effects Long-term exposure to ultrashort-wave generator people, men can appear men with decreased sexual function, impotence; women appear menstrual cycle disorders. Due to poor blood circulation in the testes, very sensitive to electromagnetic radiation, sperm production is inhibited and affect fertility; so that the egg cells appear degenerative, destroying the ovulation process, and the loss of female fertility.
High-intensity electromagnetic radiation can produce genetic effects, so that testicular chromosomal aberrations and mitotic abnormalities. Pregnant women in the early stages or before pregnancy, received short-wave diathermy, the results of its offspring congenital birth defects (deformed babies).6. The impact on the visual system eye tissue contains a large amount of water, easy to absorb the power of electromagnetic radiation, and the eye's blood flow is small, so in the role of electromagnetic radiation, the temperature of the eyeballs is easy to rise. Elevated temperature is caused by the main conditions of cataracts, rising temperatures lead to rose eye lens protein coagulation, most scholars believe that lower intensity microwave long-term effect, can accelerate the aging of the lens and turbidity, and may make the colored field of vision narrowing and dark adaptation time is prolonged, resulting in some visual impairment. In addition, the role of long-term low-intensity electromagnetic radiation can contribute to visual fatigue, eye discomfort and eye dryness and other phenomena 7. Electromagnetic radiation carcinogenic and cancer-causing effects of most experimental animals by the microwave effect, can make the incidence of cancer increased. Some microwave biologist's experiments show that electromagnetic radiation will promote the human body's (genetic), particulate cell chromosomes mutations and mitotic abnormalities, and make certain tissues appear pathological proliferation process, so that normal cells into cancer cells. U.S. embassy personnel abroad for a long time by the microwave eavesdropping emitted by a high degree of electromagnetic radiation, caused by the embassy personnel, white blood cell count rise, cancer incidence rate is higher than normal people. Another example is the area under the influence of high-power long-distance microwave radar, after investigation, the local cancer patients increased sharply. Microwave thermogenic effect on human tissues, not only can be used for physical therapy, can also be used to treat cancer, so that the center of the cancerous tissue temperature rises, and destroy the proliferation of cancer cells.
In addition to the above health hazards of electromagnetic radiation, it is also on the endocrine system, hearing, substance metabolism, morphological changes in tissues and organs, can have adverse effects.
[(This article is excerpted from the Science and Technology Book Publishing Environmental Science Basic Series of Environmental Physics Environmental Medicine )]