What is the harm of computer radiation on the human body

The terminal of the computer is the monitor, it is the same principle as the TV, when the cathode ray tube emits a stream of electrons hit on the fluorescent screen, can be converted into visible light, in the process of generating X-rays harmful to the human body. And around the VDT will also produce low-frequency electromagnetic fields, long-term pollution by electromagnetic radiation, easily lead to glaucoma, blindness, leukemia, breast cancer and other diseases. According to incomplete statistics, commonly used computer people feel eye fatigue accounted for 83%, shoulder pain and lumbago accounted for 63.9%, headache and loss of appetite accounted for 56.1% and 54.4%, and other autonomic disorders, depression, arteriosclerosis psychosis and so on. How to minimize the harm of computer radiation on the human body, the author believes that the following points should be done: 1. Avoid prolonged continuous operation of the computer, pay attention to the middle of the rest. To maintain a most appropriate posture, the distance between the eyes and the screen should be 40 to 50 centimeters, so that both eyes flat or mild downward gaze at the fluorescent screen. 2. Indoors to maintain a good working environment, such as comfortable temperature, clean air, appropriate anion concentration and ozone concentration. 3. The light in the computer room should be appropriate, not too bright or too dark, to avoid direct light on the fluorescent screen and produce interference with the light. The studio should be kept ventilated and dry. 4. Computer fluorescent screen to use color filters to reduce visual fatigue. It is best to use glass or high-quality plastic filters. 5. Install protective devices to weaken the intensity of electromagnetic radiation. 6. Pay attention to keep your skin clean. Computer fluorescent screen surface there is a lot of static electricity, the dust can be collected to the face and hands of the skin exposed to transmitting, over time, prone to rashes, hyperpigmentation, and in severe cases will even cause skin lesions. 7. Pay attention to supplemental nutrition. Computer operators in front of the fluorescent screen work time is too long, the retina on the retina of the retinas will be consumed, and the retinas are mainly synthesized by vitamin A. Therefore, computer operators should eat more carrots, cabbage, bean sprouts, tofu, jujube, oranges, and milk, eggs, animal liver, lean meat and other foods to supplement the human body vitamin A and protein. And drink more tea, tea in the tea polyphenols and other active substances will be conducive to the absorption and resistance to radioactive substances =================================================== Uncover the computer "radiation" of the X-Files As the saying goes: gold is not enough. Computer, as a modern high-tech products and electrical equipment, in bringing more convenience to people's lives, efficiency and joy at the same time, there are also some harmful to human health factors. Computer on human health hazards, from the type of radiation, mainly including computers in the work of electromagnetic radiation (various electromagnetic rays and electromagnetic waves, etc.), sound (noise), light (ultraviolet, infrared radiation, as well as visible light, etc.) and other types of radiation "pollution". From the point of view of the source of radiation, they include CRT monitor radiation sources, chassis radiation sources, as well as speakers, printers, copiers and other peripheral equipment radiation sources. One of the CRT (cathode ray tube) monitor imaging principle, determines that it is difficult to completely eliminate harmful radiation in the process of use. Because it is working, its internal high-frequency electron gun, deflection coil, high-voltage packages and peripheral circuits, will produce such as ionizing radiation (low-energy X-rays), non-ionizing radiation (low-frequency, high-frequency radiation), electrostatic fields, optical radiation (including ultraviolet, infrared radiation and visible light, etc.) and other rays and electromagnetic waves. While the liquid crystal display is the use of physical properties of liquid crystal, its working principle is completely different from the CRT display, inherently radiation-free (negligible), environmentally friendly "health" type of display; chassis internal components, including high-frequency, power consumption of the CPU, with a large number of internal integration of transistors of the main chip of the card The various components inside the chassis, including high-frequency, power-consuming CPU, various boards with a large number of internal transistors integrated into the main chip, with high-speed DC servo motors of the CD-ROM drive, floppy drive and hard disk, a number of cooling fans and transformers inside the power supply, etc., when the work of the low-frequency electromagnetic radiation and noise interference. In addition, external speakers, copiers and other peripheral equipment radiation source is also a "source" can not be ignored. From the point of view of the degree of harm, there is no doubt that electromagnetic radiation is the most harmful. Medical experts at home and abroad research shows that long-term, excessive electromagnetic radiation will cause direct harm to the human reproductive system, nervous system and immune system, is the main cause of cardiovascular disease, diabetes, cancer mutation and cause pregnant women miscarriage, infertility, teratology and other lesions of the triggering factors, and can directly affect the minors of the body's tissues and bone development, caused by visual acuity, memory loss and decreased hematopoietic function of the liver! In addition, electromagnetic radiation can directly affect the development of minors' body tissues and bones, cause vision, memory loss and decrease of liver hematopoietic function, and lead to retinal detachment in serious cases. In addition, electromagnetic radiation is also a hidden danger to information security, the use of specialized signal receiving equipment can be received and deciphered, resulting in information leakage and unnecessary losses. Excessive electromagnetic radiation also interferes with other electronic equipment in the vicinity, affecting its normal operation and electromagnetic compatibility (EMC) problems. Therefore, electromagnetic radiation has been listed by the World Health Organization as the fourth largest source of environmental pollution after water, air, noise, and become a hazard to human health of the invisible "killer", electromagnetic radiation protection has become a priority. Protection Health Countermeasures A plan of the spear and shield As the saying goes: the devil is one foot high, the road is high. In view of the harmful effects of electromagnetic radiation from computers, relevant international and domestic professional organizations and computer manufacturers have long since begun the work of protecting against computer radiation. After years of efforts, the computer and other electronic products manufacturing, radiation, energy saving, environmental protection, ergonomics and other aspects of the development of MPR, TCO, FCC, UL and other stringent certification standards to ensure that human health is not jeopardized. At the same time, the so-called energy-saving, environmentally friendly, radiation-free "green computer" also came into being in recent years. For the harm of electromagnetic radiation of the computer, at present can take active protection and passive protection of two methods. Passive protection method, that is, in addition to improving the working environment and pay attention to the use of methods, take to frequent contact and operation of computers equipped with radiation clothing, radiation screen, radiation curtains, radiation glass and other measures to reduce or eliminate the harm of electromagnetic radiation; active protection method, is from the computer electromagnetic radiation "source" -- monitor and chassis components. -- monitor and chassis and other components to start, it will eliminate or shielding. One is to buy, that is, to buy the strength of manufacturers on the market in line with the "green computer" standard products; the second is DIY, that is, to buy through a variety of certification standards, "green" computer accessories, to create their own healthy computer. Here we focus on how to choose to meet the radiation protection standard accessories to DIY healthy computer. When using the computer, to adjust the brightness of the screen, in general, the greater the brightness of the screen, the stronger the electromagnetic radiation, and vice versa, the smaller. However, it should not be adjusted too dark, so as not to affect the viewing effect because the brightness is too small, and easy to cause eye fatigue. When operating the computer, pay attention to the screen to maintain an appropriate distance. The closer the screen, the greater the electromagnetic radiation suffered by the human body, so the better is 0.5M away from the screen. In addition, after operating the computer, the face will adsorb a lot of electromagnetic radiation particles, to wash your face with water in a timely manner, which will reduce the radiation received by more than 70%. There is also a kind of tea Frequently used computer in 83% of the people feel eye fatigue, 64% often feel shoulder pain, in addition, many people have tears, loss of appetite, sore throat, cough, chest tightness and other symptoms, and even slow action, memory loss. Computer radiation not only jeopardizes human health, but also affects the quality and efficiency of work. For people who live a stressful and busy life, the easiest way to ward off computer radiation is to drink 2 to 3 cups of green tea and eat an orange every morning. Tea is rich in vitamin A original, it is absorbed by the body, can be quickly converted into vitamin A. Vitamin A not only can synthesize retinol, but also can make the eyes in the dark light to see things more clearly, so green tea can not only eliminate the hazards of computer radiation, but also to protect and improve eyesight. If you are not accustomed to drinking green tea, chrysanthemum tea can also play a role in resisting computer radiation and regulating body functions. Computer placement is very important. Try not to let the back of the screen toward the place where there are people, because the strongest computer radiation is the back, followed by the left and right sides, the front of the screen, but the weakest radiation. To be able to see the word prevail, at least 50 centimeters to 75 centimeters away, which can reduce the harm of electromagnetic radiation. Attention to indoor ventilation: scientific research has confirmed that the computer screen can produce a carcinogen called brominated dibenzofuran. Therefore, it is best to install a ventilation fan in the room where the computer is placed, and if not, pay particular attention to ventilation when surfing the Internet. Care: Facial aging is most evident in the eyes, so it is particularly important to take care of the eyes. Eye cream: has the effect of moisturizing, in addition to reducing dark circles, bags under the eyes, but also has the effect of improving wrinkles, fine lines. Eye gel: and the effect of eye cream is similar, just gel texture rub up more refreshing, daytime use of the skin without the burden of feeling, most of the elimination of under-eye bags, dark circles, soothing eye skin symptoms. ....................................................................................................................................................... Radiation electromagnetic waves on the human body has eight major harm: 1, cellular cancer promotion 2, hormonal abnormalities 3, calcium ions intense loss 4, dementia triggered 5, abnormal pregnancy abnormal production 6, hypertension heart disease 7, electromagnetic wave allergies 8, an increase in the number of suicidal people using the computer you have to pay attention to the four major hazards of computer radiation are as follows: !) 1, computer radiation pollution will affect the human circulatory system, immunity, reproduction and metabolic function, serious will also induce cancer, and will accelerate the proliferation of cancer cells in the human body. ` 2, affecting people's reproductive system is mainly manifested in men's sperm quality, pregnant women spontaneous abortion and fetal malformation, etc. 2.}N 3, affecting people's cardiovascular system manifested in palpitations, insomnia, some women's menstrual disorders, bradycardia, cardiac blood flow, sinus irregularities, leukocyte reduction, decreased immune function, etc. 5S 4, the people's visual system has a negative impact on people's eyes due to eye belongs to the human body to electromagnetic radiation sensitive organs, excessive electromagnetic radiation pollution will also have an impact on the visual system. The main manifestation of vision loss, causing cataracts, etc. Zc = AQSIQ yesterday announced the latest computer product quality national supervision and sampling results show that the electromagnetic radiation in the computer can not be ignored. AQSIQ sampling Beijing, Shanghai, Tianjin, Chongqing, Zhejiang, Hubei and other 14 provinces and municipalities of the computer products, sampling pass rate of 72%. It is understood that the results of this sampling test shows that the current domestic market computer products in computing speed, multimedia features and hardware and software support than before have improved, but the product quality level of some enterprises is not stable enough. In this sampling, four, HP, Muze and other well-known enterprises of computer products were also identified as unqualified products. It is understood that the computer product quality national inspection and sampling process found in the main quality problems is electromagnetic compatibility in the radiation nuisance, conducted nuisance indicators exceed the standard. Radiation harassment is a computer work to space emitted by an electromagnetic wave interference, this interference will affect other electrical appliances, especially high-sensitivity electrical appliances work properly; conducted harassment will affect the normal operation of other electrical appliances within the same power grid, such as the composition of the entire system of motherboards, display cards, switching power supplies, monitors, keyboards, mice, etc., if the purchase is not good enough to cause radiation harassment exceeds the standard. Sampling found that some enterprises due to insufficient understanding of the standard, parts and components import control and production line assembly quality control is not strict, the lack of the necessary means of detection, resulting in product quality is not qualified