Misunderstanding of computer radiation protection
For a long time, the wave of electromagnetic radiation, which has been hyped by manufacturers of radiation protection products and is harmful to human survival, has intensified, attracting many daily necessities manufacturers to follow suit and constantly promote the protective products known as "world-leading technology" to consumers, such as glasses, gloves, masks, jackets, pants and even maternity suits. Merchants of natural cosmetics will not miss this opportunity, all kinds of "computer anti-radiation cosmetics". Let's explore the true features of these "flowers in the fog" from the principle of basic scientific knowledge.
To sum up, we really understand the essence of computer electromagnetic radiation and will not be distorted by exaggerated propaganda. Exposed the so-called "anti-computer radiation cosmetics" lie, and found the symptomatic beauty rehabilitation road for computer skin problems.
What is the "magnetic radiation" generated by computers?
Basic physics tells every middle school student that when current flows in a conductor, a magnetic field is bound to be generated in its external space, and magnetic lines with certain energy constantly flow from one magnetic pole to another, so we human beings live in such a natural and artificial magnetic field. If the magnetic field is too strong, it will cause "magnetic pollution" to the human body
There was a literature report: 1998 The World Health Organization listed five major effects of electromagnetic radiation on human body:
First, electromagnetic radiation is the main cause of cardiovascular disease, diabetes and cancer mutation;
Second, electromagnetic radiation does harm to human reproductive system, nervous system and immune system;
Thirdly, electromagnetic radiation is the inducing factor of pregnancy abortion, infertility, teratoma and other diseases;
Fourth, electromagnetic radiation directly affects children's development and bone development, leading to decreased vision, retinal detachment and decreased liver hematopoietic function;
5. Although electromagnetic radiation will reduce physiological function and make women's endocrine disorders and menstrual disorders, many media confuse "magnetic pollution" with the normal "magnetic effect". It should be recognized that these problems that are harmful to human body stem from excessive "pollution" of electromagnetic shielding materials. According to the data provided by many environmental protection materials, when the computer is running, the electromagnetic waves emitted by the chassis main body and the display will
At present, there are strict regulations on the radiation of electronic products in China, such as compulsory 3c certification, but from the actual situation, it is unrealistic to completely eliminate radiation in computer design. Therefore, as a user, you can buy a display that has passed tco certification, choose the chassis of a big brand manufacturer or use products with special professional radiation protection materials to avoid electromagnetic radiation problems. Although electromagnetic radiation is everywhere, as long as we have enough radiation knowledge and use computers correctly, we need not panic about the electromagnetic radiation of computers at all.
Experts have found that all household appliances that use electricity every day will produce electromagnetic radiation, which is harmful to human body. The most important thing is to look at the amount of radiant energy. According to the regulations of the International Radiation Protection Association and the International Labor Organization, the safe intensity of electromagnetic field is 0.2-0.4 microtra (this is the safe limit of electromagnetic field when computer is contacted for 24 hours), and there is no harm to human body below this intensity. A special research institute has tested the electromagnetic field intensity of the computer. The results show that the electromagnetic field intensity near the screen is 0.9, while it is less than 0. 1 at a distance of about 5 cm from the screen, which is almost impossible to measure at a distance of 30 cm (this is the customary distance between the computer operator's body and the screen). In addition, electromagnetic waves in space are indeed everywhere, but generally speaking, the intensity of this electromagnetic radiation is very small and will not cause harm to human health. The Regulations on the Protection of Electromagnetic Radiation promulgated by China stipulates the standard limit of electromagnetic radiation pollution to equipment and personnel. Only when the electromagnetic wave reaches a certain intensity does it need to be protected.
[Edit this paragraph] Computer radiation effects
Because the computer has a certain radiation source, it will directly affect the stability of our endocrine system. This leads to irregular skin metabolism and so on. In addition, computers are magnetic, which will accumulate some dust and unclean air, affecting the quality of our skin and the aging degree of our skin. Radiation can also darken our skin.
For each different type of skin, the performance is different:
Mixed skin: this kind of skin usually has the characteristics of dry and oily skin, usually T-zone oil and dry cheeks. Facing the computer, the characteristics of the two skin types are becoming more and more obvious.
Oily skin: oil will be more serious, or at the same time the face will start to dry, that is, lack of water, acne, large pores, etc.;
Dry skin: dry skin, fine lines, dullness and dark spots;
Experts teach you several countermeasures:
Rich vitamin C can be taken from various vegetables and fruits, especially fruits, because it is water-soluble;
Let's talk about vitamin e. Also known as reproductive alcohol, it has many uses. For people with computer skin, it is very effective to eat some natural vitamin E, such as animal viscera and various beans, to protect the cell wall and thus strengthen the skin's antioxidant capacity.
Finally, you should pay attention to drinking more water at ordinary times.
It is best to drink 2500 ml of mineral water every day. For example, 1 bottle of mineral water is 550ML, which is about 4 bottles. Keep the daily urine volume 1000 ml. Eat more weakly alkaline foods such as vegetables and fruits, keep your body weakly alkaline, and eat less acidic foods, so that your skin will gradually improve.
[Edit this paragraph] The most effective way to prevent computer radiation
The first trick: For 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. Spirulina and sea buckthorn oil also have anti-radiation effects.
The second measure: do skin care isolation before surfing the internet. For example, the use of pearl membrane, the unique "South Pearl Cui Membrane" forms a layer of 0.00 1mm pearl membrane on the skin, which can effectively prevent environmental pollution and radiation; Secondly, after the computer is used, many particles of electromagnetic radiation will be adsorbed on the face. Wash your face with clear water in time, which will reduce radiation by more than 70%!
The third measure: when operating a computer, it is best to install a computer-specific color filter on the display screen to reduce the harm of radiation, and do not place miscellaneous metal objects indoors to avoid the re-emission of electromagnetic waves. When using a computer, you need to adjust the brightness of the screen. Generally speaking, the brighter the screen, the stronger the electromagnetic radiation, and vice versa. But it can't be too dark, so as not to affect the effect because of low brightness, which is easy to cause eye fatigue.
The fourth measure: you should try to buy a new computer, and generally don't use an old computer. The radiation of old computers is generally severe. In the case of the same distance and similar models, it is generally 1-2 times that of the new computer.
The fifth measure: the location of the computer is very important. Try not to let the back of the screen face people, because the back of the computer has the strongest radiation, followed by the left and right sides, and the front of the screen has the weakest radiation. As long as you can see clearly, the distance should be at least 50 cm to 75 cm, which can reduce the harm of electromagnetic radiation.
The sixth measure: pay attention to indoor ventilation: scientific research has confirmed that computer screens will 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.
Seventh measure: Pay attention to eat more foods rich in vitamins A, C and protein, such as carrots, bean sprouts, tomatoes, lean meat and animal livers, and often drink some green tea.
Eighth trick: People who often work in front of the computer often feel dry eyes and pain, so it is necessary to put some bananas on the computer desk. The potassium in banana can help the human body to discharge excess salt, make the body reach the balance of potassium and sodium, and relieve the discomfort of eyes. In addition, bananas contain a lot of beta carotene. When the human body lacks this substance, the eyes will become painful, dry, dull and dehydrated. Eating more bananas can not only relieve these symptoms, but also relieve eye fatigue to some extent and avoid premature eye aging.
[Edit this paragraph] The part with the strongest computer radiation
The radiation on the back of the computer is the strongest, followed by the left and right sides, and the radiation on the front of the screen is the weakest. So try not to let the back of the screen face someone, and the distance should be at least 50 cm to 75 cm, which can reduce the harm of electromagnetic radiation.
[Edit this paragraph] How to minimize the harm of computer radiation to human body?
1. Avoid operating the computer continuously for a long time and pay attention to rest. To maintain a most suitable posture, the distance between the eyes and the screen should be 40~50 cm, so that the eyes can look down or slightly down at the screen.
2. Maintain a good indoor working environment, such as comfortable temperature, clean air, proper negative ion concentration and ozone concentration.
3. The light in the computer room should be appropriate, not too bright or too dark, so as to avoid interference light caused by direct light on the screen. The studio should be kept ventilated and dry.
4. Color filters should be used on the computer screen 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 the skin clean. There is a lot 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 supplementary nutrition. Computer operators working in front of the screen for too long will consume rhodopsin on the retina, which is mainly synthesized by vitamin A. Therefore, computer operators should eat more foods such as carrots, Chinese cabbage, bean sprouts, tofu, red dates, oranges, milk, eggs, animal livers and lean meat to supplement vitamin A and protein in the human body. Drink more tea, tea polyphenols and other active substances in tea can help absorb and resist radioactive substances.