1, the computer to maintain a certain distance is one of the important measures to protect against electromagnetic radiation. Because the intensity of electromagnetic radiation with the square value of the distance from the source of radiation and decline. Computer placement is very important, try not to let the back of the screen towards someone's place, because the strongest computer radiation is the back, followed by the left and right sides, the front of the screen, but the weakest radiation. Experts recommend that computer users should be kept at a distance of not less than 50 centimeters from the display, on both sides of the computer and the back to maintain a distance of not less than 120 centimeters. In the office to use the computer, before and after, left and right distance to maintain the required distance.
2, reduce the contact time with the computer is very important. Because the cumulative dose of radiation received is proportional to the intensity of radiation and radiation time, reduce the time on the computer is necessary, due to work, the best on the computer every day not more than 8 hours, every one or two hours the best to outdoor activities.
3, indoor do not place idle metal objects, so as to avoid the formation of electromagnetic wave re-emission. Indoor ventilation and light, can also be placed such as fairy head and other plants, it is said to have static air, radiation effects.
4, the operation of the computer is best to install a computer on the display of special color filters to reduce the harm of radiation, the use of computers, 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, but can not be adjusted too dark, so as not to affect the effect of the brightness is too small, and is easy to cause eye fatigue. Should be as far as possible to buy new models of computers, generally do not use the old computer, the old computer radiation is generally more powerful, in the same distance, the same type of model conditions, generally 1-2 times the new computer.
5, some people on the Internet for a long time, and continuous uninterrupted, in this case, the best way is to wear protective clothing, wear protective hats, in order to directly reduce the body's absorption of radiation. Note that, as appropriate, eat some carrots, bean sprouts, tomatoes, lean meat, animal liver and other foods rich in vitamins A, C and protein, often drink some green tea, green tea not only eliminates the hazards of computer radiation, but also protects and improves 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. Pay attention to do more outdoor exercise, face, hands can rub skin cream, dry eyes can do eye exercises or point eye medicine.
6, where there is electricity, more or less radioactive, LCD monitors also have radiation, but is around the screen, radiation is also small no desktop CRT radiation, you can buy a laptop or desktop LCD monitor computer.
How to minimize the harm of computer radiation on the human body, I think 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 are flat or gazing mildly downward at the fluorescent screen.
2. A good working environment should be maintained indoors, such as a comfortable temperature, clean air, and appropriate anion and ozone concentrations.
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 light. The studio should be kept ventilated and dry.
4. The computer's 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. The surface of the computer fluorescent screen there is a lot of static electricity, its collection of dust can be transmuted to the face and hands of the skin exposed, over time, prone to rashes, hyperpigmentation, and in severe cases, even cause skin lesions and so on.
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 retinal retinal will be consumed, and the retinal retinal retinal retinal retinal retinal retinal retinal retinal red by vitamin A synthesis. 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
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Reveal the computer "radiation" of the X-Files
As the saying goes: no gold is perfect. Computer, as a modern high-tech products and electrical equipment, in bringing more convenience, efficiency and joy to people's lives at the same time, there are some adverse factors harmful to human health.
The 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, photocopiers 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 use of the process. 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 not to be ignored "source".
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 in 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 will also interfere with other electronic equipment around, 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 following the water, air, noise, and become a hazard to human health of the invisible "killers", protection against electromagnetic radiation has become a priority.
Protection
Health countermeasures A plan of 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.
The harm of electromagnetic radiation for the computer, can be taken to 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, it 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 to meet the "green computer" standard products; the second is DIY, that is, to buy through a variety of certification standards of "green" computer accessories, to create their own healthy computer. Here we will 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 screen brightness, the stronger the electromagnetic radiation, and vice versa, the smaller. However, it should not be adjusted too dark, so as not to affect the effect of too little brightness, 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, in the operation of the computer, the face will be adsorbed 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 another kind of tea
Commonly 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 the retinal quality, 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 used to drinking green tea, chrysanthemum tea can also play a role in resisting computer radiation and regulating body functions.
The placement of the computer is very important. Try not to let the back of the screen towards someone's place, 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 words prevail, at least 50 centimeters to 75 centimeters away, which can reduce the damage of electromagnetic radiation.
Pay 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: The most visible part of facial aging is the eyes, so it is especially important to take care of the eyes.
Eye cream: It has a moisturizing effect, and in addition to reducing the problem of dark circles and bags under the eyes, it also has the effect of improving wrinkles and fine lines.
Eye gel: and the effect of the eye cream is almost the same, but the 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.