What are the consequences of prolonged exposure to radiation from a computer? Please everyone, thank you!

The computer is an epoch-making invention, it brings people work, study, life on all kinds of convenience, but also brought the worry, people more or less worried about long-term computer work on the health effects, such as computer radiation will not produce damage to the human body. Young women and pregnant women are even more afraid that this will affect their fertility or unfavorable to the fetus. In fact, computers do form a weak electromagnetic field when working, but there is no conclusion on whether long-term exposure will cause cancer or be harmful to the human body. There are some scholars who believe that this kind of electromagnetic field may cause cancer. The electromagnetic field caused by computers is scattering, and a computer operator will be affected by other computers around him in addition to his own. According to a research report in the United States, if a pregnant woman works in front of a computer for more than 20 hours a week, the chance of her having a miscarriage in the first trimester is two times that of other people. Therefore, pregnant women should avoid approaching computers during pregnancy. In addition, the electromagnetic field of a color computer is 3-4 times higher than that of a black and white computer. So, how much harm may computers cause to the human body? Domestic and foreign news media have repeatedly reported that computer fluorescent screens lead to staff miscarriage, teratology, facial rashes, cataracts and photosensitive epilepsy and other diseases, but after the statistical analysis of epidemiology can not be confirmed such conclusions, the World Health Organization expert group also holds this opinion. At the same time, the relevant monitoring results also show that the X-ray, ultraviolet, infrared, ultra-low-frequency, electrostatic field and acoustic radiation generated by computer or television fluorescent screens are within the permissible range. However, visual fatigue caused by computer monitors is something worth noting, as the constantly changing and scrolling characters on computer monitors will irritate the eyes and cause some damage to them. In addition, due to the placement of computer indoor environment positive and negative ion imbalance can also cause the user's autonomic nervous disorders, depression and so on. Experts pointed out that a reasonable diet to help prevent computer operators from suffering from "computer disease". Mainly breakfast should be eaten to ensure that there is sufficient nutrition and calories to maintain high energy; midday meal should be eaten more protein-rich foods; dinner is lighter, eat more high-fiber foods, but also consciously choose to protect the eyes of the food, to prevent myopia or other eye diseases. 1, how to prevent computer damage to human health Computer in the high-tech enjoyment of mankind at the same time, to the operator of the hazards also gradually for people to pay attention to. Long-term computer operators should be self-care awareness. In the daily work to prevent computer disease, should pay attention to the following points: suitable working environment. Indoor lighting should be moderate, not too bright or too dark, and avoid direct light irradiation screen, so as not to produce interference with the light. The screen should not be too bright, and the color should be green. Air-conditioned rooms should be regularly sterilized indoor air to control pollution. At the same time, always open doors and windows or use a ventilator to replace indoor air. Correct sitting posture. Choose a height-adjustable chair with full back support, knees bent at about 90 degrees, and a comfortable sitting position. The center of the computer screen should be at the same level as the operator's chest, the distance between the eyes and the screen should be 40cm to 50cm, the body should not be too close to the table, and the elbow should be naturally bent. During operation, you should always close your eyes and rest for a moment to regulate eye fatigue. Do not use excessive force when playing the keyboard, and try to relax your muscles as much as possible. People with wrist diseases or tenosynovitis should often move the wrist and finger joints, and try not to support the wrist on the edge of the desktop. People with frozen shoulder should always move their shoulder joints to avoid prolonged inactivity and adhesion of muscles and tendons. Improve work efficiency, try to shorten the time spent in front of the screen. Especially do not indulge in fast-paced, colorful video games. Foreign countries have clear regulations, computer operators work continuously for 1 hour, rest 10 to 15 minutes. Rest should stand up and move hands and feet, can also go outdoors to relax or do radio exercises. Should often wash your face and hands. The surface of the computer screen has a large number of electrostatic charges, easy to collect dust, the operator's face and hands and other exposed places, easy to stain these pollutants. If you do not pay attention to frequent cleaning, the face may appear rash, serious cases can lead to skin pigmentation. Computer operators should eat more vitamin A-rich foods. Such as carrots, bean sprouts, dates, etc., to supplement the body's vitamin A deficiency. 2, if you often use the computer at the same time want to maintain good health, you have to pay attention to: operation of the computer time should be moderate, not too long. Continuous operation time as far as possible to control in 3 ~ 4 hours, every 45 minutes to rest for a quarter of an hour, and do some eye exercises, so that the eyes get relaxed. Also need to relax the head, neck and back, leave the seat up and walk, so that the blood circulation, take away the fatigue. Do not use the computer fatigue and fight a long battle. Operate the computer posture should be correct. Body sitting upright, do not rely on the side of the seat, waist as much as possible against the backrest of the chair, arms naturally down, keep the shoulders in a relaxed state. Monitor placement should be reasonable. Monitor placement should not be too high or too low, the general top end of the monitor should be roughly parallel to the level of the line of sight. Let the eyes have the most comfortable reading angle, reduce unnecessary fatigue. The best side of the monitor by the window, on the one hand, you can use natural light to dilute the computer radiation, reduce the harm to the body, on the other hand, sufficient natural light on the eyesight is very beneficial. Computer use is complete, scrub your face with warm water to eliminate harmful particles on the skin, to keep the skin clean and prevent skin discomfort. Computer use, you can also drink a cup of tea, on the one hand, you can relax your body, adjust your mood, on the other hand, tea can refresh your eyes. 3, health-conscious computer equipment Now, the application of computers is becoming more and more popular, people are using computers for longer and longer. Long-term to a stiff posture sitting in front of the computer, the eyes face electromagnetic radiation screen, wrist and fingers for a long time to do mechanical repetitive work, it can be said with certainty that the human body is a certain harm. In order to reduce these devices and mechanical action brought about by the harm to the human body, in addition to do some self-protection, how to select some health care functions as well as ergonomically designed computer equipment, is also very important. We have selected some of the more representative computer equipment for the reader's reference. (1) Invisible goggles Invisible goggles is a piece of film PVC soft lens, is recommended by the "PC Magazine" and "Vision Fitness" and other foreign magazines, patented products, prevention of eye fatigue, anti-glare, anti-reflective, reduce glare, increase the contrast between light and dark, to increase the clarity and reduce the effect of ultraviolet rays and so on. Specifically as follows: anti-static charge, anti-radiation and reduce human injury and reduce the incidence of infertility. Absorb screen glare, reflected light, glare, absolute prevention of eye damage. Reduce eye fatigue caused by long term screen gazing, prevent myopia and astigmatism. Improve light transmission and dust accumulation between general goggles and screen. Easy to install and maintain, durable. (2) ergonomic keyboard and mouse The use of computers and typewriters need to operate the keyboard, the current staff engaged in prolonged operation of the keyboard tends to produce wrist, arm, shoulder and back fatigue, affecting work and rest. From the perspective of ergonomics, to improve operational efficiency and can be sustained operation, the operator should be able to use a comfortable, natural operating posture, staff due to the existing keyboard operating conditions and the use of abnormal posture, is the main cause of physical fatigue. Because in the current workbench operation of the keyboard, if the staff wrist on the table, due to the keyboard keys higher than the surface of the workbench, it is inevitable to let the wrist up, a long time will cause wrist pain; and hanging wrist or elbow operation, although more flexible, but due to the lack of support for the hand, arm or shoulder muscles have to remain tense, so it can not be sustained, and also prone to fatigue. On this issue, ergonomics of the existing study concluded that "the keyboard from the desktop to the middle of a line of keys should be as low as possible. The thickness of the front of the keyboard exceeds 50mm, which will cause excessive upward tilting of the wrists, thus increasing the load on the hands. It is best to keep this thickness at about 30mm and add palm pads if necessary. This is solved by reducing the thickness of the keyboard itself and adding hand supports in front of the keyboard. There is a limit to how far the keyboard can be thinned. A center-separated keyboard allows the user's hands and wrists to be more relaxed and in a natural state. This prevents and effectively reduces strain on the wrist muscles. The keys of this keyboard are at a comfortable angle for the user. In front of the keyboard to increase the hand support, there are still similar to the principle of palm pads for desktop computer keyboards, "key support", can support the wrists so that they are not upturned, the disadvantage is that it will take up part of the keyboard before the desk, and when the desk is narrow, the keyboard is close to the front edge of the workbench, the use of the key or palm pads, the forearms are still a lack of appropriate Support. In addition, there are computer desk in the activities of the keyboard on the front edge of the desktop is equipped with a baffle, the operation of the keyboard can be resting on the forearms slightly above the top of the desktop baffle, the wrist does not have to be cocked. Ergonomic mouse is the most health-friendly mouse you can buy. It conforms to the natural shape of the human hand and prevents and effectively reduces the strain of repetitive use, such as wrist syndromes. The newly designed mouse pad allows the user's arm to move easily on the workstation, reducing wrist stress or other repetitive stress injuries, and this mouse pad allows the mouse to be positioned more accurately. (3) comfortable computer chair This is the latest ergonomic computer chair, which is based on the operator in the use of the computer in the most relaxed posture and design, can avoid the operator due to spinal deformation caused by local muscle fatigue. And its adjustable armrests, but also so that the operator can be based on their own situation, adjust the height of the armrests to reduce the fatigue of the elbow and wrist. (4) low radiation monitor computer screen to produce a large amount of radiation, for long-term use of computer operators, will inevitably be subject to greater harm. In order to reduce this harm, find a low-radiation monitor, it becomes extremely important. Ultra 7000 breaks the latest Swedish standards: calculations, in front of the 20-inch Ultra 7000 monitor, only a mere 0.1 mGauss radiation, which is only one twenty-fifth of the standard value. (5) Professional Computer Workstation This professional computer operator's workstation combines the advantages of all the above computer health equipment, so if you want to work really easily in front of the computer, you may want to try it. However, it is really not cheap.