1. Avoid operating the computer continuously for a long time, and pay attention to taking a break. To maintain a most appropriate posture, the distance between the eyes and the screen should be 41~51 cm, so that the eyes can look down or look down at the screen slightly.
2. Keep a good working environment indoors, such as comfortable temperature, clean air, proper anion concentration and ozone concentration.
3. The light in the computer room should be suitable, not too bright or too dark, so as to avoid the interference of light caused by direct illumination on the fluorescent screen. The studio should be kept ventilated and dry.
4. color filters should be used on the screen of the computer to reduce visual fatigue. It is best to use glass or high-quality plastic filters.
5. Install protective devices to reduce the intensity of electromagnetic radiation.
6. Pay attention to keep your skin clean. There is a large amount of static electricity on the surface of computer screen, and the accumulated dust can be transferred to the exposed parts of face and hand skin for a long time, which is prone to macula and pigmentation, and even cause skin lesions in severe cases.
7. Pay attention to supplement nutrition. When computer operators work in front of the screen for too long, rhodopsin on the retina will be consumed, and rhodopsin is mainly synthesized by vitamin A. Therefore, computer operators should eat more carrots, Chinese cabbage, bean sprouts, tofu, red dates, oranges, milk, eggs, animal liver, lean meat and other foods to supplement vitamin A and protein in human body. And drink more tea, tea polyphenols and other active substances in tea will be beneficial to absorb and resist radioactive substances
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Computer, as a modern high-tech product and electrical equipment, brings more convenience, efficiency and joy to people's lives, but there are also some unfavorable factors that are harmful to human health.
From the perspective of radiation types, the hidden dangers of computers to human health mainly include electromagnetic radiation (various electromagnetic rays and electromagnetic waves, etc.), sound (noise), light (ultraviolet rays, infrared radiation and visible light, etc.) and other radiation "pollution".
from the perspective of radiation sources, they include CRT monitor radiation sources, chassis radiation sources and peripheral equipment radiation sources such as speakers, printers and photocopiers. Among them, the imaging principle of CRT (cathode ray tube) display determines that it is difficult to completely eliminate harmful radiation during its use. Because when it is working, its internal high-frequency electron gun, deflection coil, high-voltage bag and peripheral circuits will produce many kinds of rays and electromagnetic waves, such as ionizing radiation (low-energy X-rays), non-ionizing radiation (low-frequency and high-frequency radiation), electrostatic field, optical radiation (including ultraviolet radiation, infrared radiation and visible light, etc.). Liquid crystal display, on the other hand, uses the physical characteristics of liquid crystal, and its working principle is completely different from CRT display. It is a "healthy" display with no radiation (negligible) and environmental protection. Various components inside the chassis, including CPU with high frequency and high power consumption, various boards with main chips with a large number of transistors integrated inside, optical drives, floppy drives and hard disks with high-speed DC servo motors, several cooling fans and transformers inside the power supply, etc., will emit radiation and noise interference such as low-frequency electromagnetic waves when working. In addition, external speakers, photocopiers and other peripheral equipment radiation sources are also a "source" that cannot be ignored.
judging from the degree of harm, electromagnetic radiation is undoubtedly the most harmful. Research by medical experts at home and abroad shows that long-term and excessive electromagnetic radiation will directly harm human reproductive system, nervous system and immune system, and it is the main inducement of cardiovascular disease, diabetes and cancer mutation, and the inducing factor of abortion, infertility and teratogenesis in pregnant women, and it can directly affect the development of body tissues and bones of minors, resulting in decreased vision, memory and liver hematopoietic function, and even lead to retinal detachment in severe cases. In addition, electromagnetic radiation also poses a hidden danger to information security, which can be received and decoded by special signal receiving equipment, leading to information leakage and unnecessary losses. Excessive electromagnetic radiation will also interfere with other electronic devices around and affect their normal operation, resulting in electromagnetic compatibility (EMC) problems.
Therefore, electromagnetic radiation has been listed by the World Health Organization as the fourth largest environmental pollution source after water, atmosphere and noise, and it has become an invisible "killer" that harms human health. Therefore, it is imperative to protect electromagnetic radiation.
protection
spear and shield of health countermeasure A
As the saying goes, the magic height is one foot, and the Tao height is ten feet. In view of the harmfulness of electromagnetic radiation of computers, relevant international and domestic professional organizations and computer manufacturers have started the work of protecting computer radiation very early. After years of hard work, many strict certification standards such as MPR, TCO, FCC, UL have been formulated for the production and manufacture of electronic products such as computers in terms of radiation, energy saving, environmental protection and ergonomics, so as to ensure that human health will not be harmed. At the same time, the so-called "green computer" with energy saving, environmental protection and no radiation has emerged in recent years.
At present, there are two methods to protect computers from electromagnetic radiation: active protection and passive protection. Passive protection method, that is, in addition to improving the working environment and paying attention to the use method, adopts measures such as providing radiation protection clothes, radiation protection screens, radiation protection curtains, radiation protection glass, etc. for people who often contact and operate computers, so as to reduce or eliminate the harm of electromagnetic radiation; The active protection method starts from the "source" of computer electromagnetic radiation, such as monitors and chassis, to eliminate or shield it.
first, purchase, that is, choose and buy products that meet the "green computer" standard from powerful manufacturers in the market; The second is DIY, that is, buying "green" computer accessories that have passed various certification standards to build your own healthy computer. Below we will focus on how to choose accessories that meet the radiation protection standards to DIY healthy computers.
When using a computer, adjust the brightness of the screen. Generally speaking, the greater the brightness of the screen, the stronger the electromagnetic radiation, and vice versa. However, it can't be turned too dark, so as not to affect the viewing effect because the brightness is too small, and it is easy to cause eye fatigue.
when operating the computer, pay attention to keeping a proper distance from the screen. The closer you are to the screen, the greater the electromagnetic radiation the human body receives, so it is better to be 1.5M away from the screen.
In addition, after operating the computer, many particles of electromagnetic radiation will be absorbed on the face. Wash your face with clean water in time, which will reduce the radiation exposure by more than 71%.
Another kind is drinking tea.
83% of people who use computers often feel tired eyes, and 64% often feel sore shoulders and low back pain. In addition, many people have symptoms such as tears, loss of appetite, sore throat, cough, chest tightness, and even slow movement and memory loss.
Computer radiation not only harms people's health, but also affects the quality and efficiency of work. For the busy people, the easiest way to resist computer radiation is to drink 2-3 cups of green tea and eat an orange every morning. Tea is rich in provitamin A, which can be quickly converted into vitamin A after being absorbed by human body. Vitamin A can not only synthesize rhodopsin, but also make eyes see things more clearly in dark light. Therefore, green tea can not only eliminate the harm of computer radiation, but also protect and improve vision. 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 location of the computer is very important. Try not to let the back of the screen face people, because the computer has the strongest radiation on the back, followed by the left and right sides, and the front of the screen has the weakest radiation. As long as you can read clearly, the distance should be at least 51 cm to 75 cm, which can reduce the harm of electromagnetic radiation.
Pay attention to indoor ventilation: Scientific research has confirmed that the computer screen can produce a carcinogen called dibenzofuran bromide. Therefore, it is best to install a ventilator in the room where the computer is placed. If not, pay special attention to ventilation when surfing the Internet.
care: the most obvious part of facial aging is the eyes, so eye care is particularly important.
eye cream: it has moisturizing effect, which can not only reduce the problems of dark circles and bags under eyes, but also improve wrinkles and fine lines.
Eye gel: It has the same effect as eye cream, except that the gelatinous texture is more refreshing to rub, and there is no burden to use the skin during the day. Most of them are used to eliminate eye bags and dark circles and relieve eye skin symptoms.