If you don’t read the following long article: The biggest radiation is the keyboard~! This is the latest scientific research ~
The radiation waves emitted by computers are often ignored by people. According to the international MPRⅡ radiation safety regulations: the radiation exposure must be less than or equal to 25V/m within a distance of 50cm.
But do you know how much radiation a computer emits? Computer radiation: 1. Keyboard 1000V/m2, mouse 450V/m3, screen 218V/m4, host 170V/m5, Notebook 2500V/m
In addition, radiated electromagnetic waves cause eight major harms to the human body:
1. Promotion of cell cancer
2. Abnormal hormones
3. Intense loss of calcium ions
4. Cause of dementia< /p>
5. Abnormal pregnancy and abnormal birth
6. Hypertension and heart disease
7. Electromagnetic wave allergy
8. Increase in suicides
When using computers, you should pay attention to the four major hazards of computer radiation:
1. Computer radiation pollution will affect the human body’s circulatory system, immunity, reproduction and metabolic functions. In severe cases, It can induce cancer and accelerate the proliferation of cancer cells in the human body. `
2. The main manifestations of affecting people's reproductive system include reduced sperm quality in men, spontaneous abortion and fetal malformations in pregnant women.
3. The cardiovascular system that affects people manifests as palpitations, insomnia, menstrual disorders in some women, bradycardia, reduced cardiac blood volume, sinus arrhythmia, leukopenia, decreased immune function, etc.
4. It has adverse effects on people’s visual system. Since the eyes are the sensitive organs of the human body to electromagnetic radiation, excessive electromagnetic radiation pollution will also affect the visual system. The main manifestations are decreased vision and cataracts.
The results of the latest national supervision and inspection of computer product quality announced yesterday by the General Administration of Quality Supervision, Inspection and Quarantine show that electromagnetic radiation in computers cannot be ignored.
The General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China randomly inspected computer products from 14 provinces and cities including Beijing, Shanghai, Tianjin, Chongqing, Zhejiang, and Hubei, and the sampling pass rate was 72%. It is understood that the results of this spot check show that the computer products currently on the domestic market have greatly improved in terms of computing speed, multimedia functions and software and hardware support, but the product quality level of some companies is not stable enough. In this spot check, computer products from well-known companies such as Stone, HP, and Muze were also identified as substandard products.
It is understood that the main quality problem discovered during this national inspection and spot check of computer product quality is that the radiation harassment and conduction harassment indicators in electromagnetic compatibility exceed standards. Radiation disturbance is a kind of electromagnetic wave interference emitted into space when the computer is working. This interference will affect the normal operation of other electrical appliances, especially high-sensitivity appliances; conductive harassment will affect the normal operation of other electrical appliances in the same power grid, such as those that make up the whole machine. System motherboards, graphics cards, switching power supplies, monitors, keyboards, mice, etc., if not purchased properly, will cause radiation disturbance to exceed the standard. During the random inspection, it was found that some companies had insufficient understanding of the standards, lax parts purchase control and production line assembly quality control, and lacked necessary testing methods, resulting in substandard product quality.
The seven companies, trademarks and models of microcomputer radiation harassment found in this spot check are:
Beijing Sitong Computer Technology Co., Ltd., Sitong, Shocking JS100;
Chongqing Xinbo Information Technology Development Co., Ltd., Xinbo, Free Village 1101;
Nanning Shengli Technology Co., Ltd., Shengli, Leap I;
Shanghai Botai Computer Technology Co., Ltd. Company, PATEO, BT-SMC-I3298;
Wuhan Juxing Computer Co., Ltd., Shenaotong, JXSD530L;
Beijing Heyuan Muze Technology Development Co., Ltd., Muze Ze, E Fashion 510D;
Shanghai Hewlett-Packard Co., Ltd., HP, P7281-L2325.
Uncovering the X-Files of Computer "Radiation"
As the saying goes: There is no pure gold. Computers, as a modern high-tech product and electrical equipment, bring more convenience, efficiency and joy to people's lives, but they also have some adverse factors that are harmful to human health.
The hidden dangers of computers to human health, from the perspective of radiation types, mainly include electromagnetic radiation (various electromagnetic rays and electromagnetic waves, etc.), sound (noise), light (ultraviolet rays, etc.) generated and emitted by computers when they are working. , infrared radiation, 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 copiers. Among them, the imaging principle of CRT (cathode ray tube) monitor determines that it is difficult to completely eliminate harmful radiation during use. Because when it is working, its internal high-frequency electron gun, deflection coil, high-voltage package and peripheral circuits will generate such things as ionizing radiation (low-energy X-rays), non-ionizing radiation (low-frequency, high-frequency radiation), electrostatic electric field, optical radiation ( Including ultraviolet, infrared radiation, visible light, etc.) and other rays and electromagnetic waves. The LCD monitor uses the physical properties of liquid crystal. Its working principle is completely different from that of the CRT monitor. It is a naturally radiation-free (negligible) and environmentally friendly "healthy" monitor; various components inside the chassis, including high frequency, power High-power CPUs, various boards with main chips integrating a large number of transistors, optical drives, floppy drives and hard drives with high-speed DC servo motors, several cooling fans and transformers inside the power supply, etc., will emit low frequencies when working. Radiation and noise interference such as electromagnetic waves. In addition, radiation sources from peripheral equipment such as external speakers and copiers are also "sources" that cannot be ignored.
From the perspective of 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 can cause direct damage to the human reproductive system, nervous system and immune system. It is the main cause of cardiovascular disease, diabetes, cancer mutation and causes miscarriage, infertility and malformation in pregnant women. It can directly affect the development of body tissues and bones of minors, causing a decrease in vision, memory and hematopoietic function of the liver. In severe cases, it can lead to retinal detachment. In addition, electromagnetic radiation also poses hidden dangers to information security. Special signal receiving equipment can be used to receive and decipher it, leading to information leakage and unnecessary losses. Excessive electromagnetic radiation can also interfere with other surrounding electronic equipment, affecting its normal operation and causing 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, and noise. It has become an invisible "killer" that harms human health. Protection against electromagnetic radiation has become a top priority.
There are tips to prevent computer radiation
When using a computer, it is best to equip a good-quality radiation-proof screen in front of the monitor. Pay attention to eating more foods rich in vitamin A, C and protein such as carrots, bean sprouts, tomatoes, lean meat, animal liver, etc. as appropriate, and often drink some green tea, etc.
For people who live a stressful and busy life, the easiest way to resist computer radiation is to drink 2 to 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 the body. Vitamin A can not only synthesize rhodopsin, but also enable the eyes to 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.
Computer radiation is inevitable, but it can be reduced. First of all, you should try to buy a new computer as much as possible. Generally, do not use old computers. The radiation of old computers is generally more severe. Under the conditions of the same distance and the same model, the radiation is generally 1-2 times that of a new computer. When operating a computer, it is best to install a computer-specific color filter on the display screen to reduce the harm of radiation. Do not place stray metal objects indoors to avoid re-emission of electromagnetic waves. When using a computer, you must adjust the brightness of the screen. Generally speaking, the brighter the screen, the stronger the electromagnetic radiation, and vice versa. However, it should not be adjusted too dark, so as not to affect the effect due to too low brightness and easily cause eye fatigue. Also be sure to keep an appropriate distance from the screen. The closer you are to the screen, the greater the electromagnetic radiation the human body will receive, so it is best to be half a meter away from the screen.
After using the computer, a lot of electromagnetic radiation particles will be absorbed on the face. Wash your face with water in time, which will reduce the radiation exposure by more than 70%.
In addition to being able to attack bad guys, cactus also has another benefit! Placing a cactus in front of your computer desk is said to help reduce radiation.
People who frequently use computers may feel eye discomfort, vision loss, and fatigue. People who frequently use computers should pay attention to the following aspects in their diet:
Eat foods that are good for your eyes, such as eggs, fish, cod liver oil, carrots, spinach, sweet potatoes, pumpkins, wolfberries, chrysanthemums, and sesame seeds. , radish, animal liver, etc.
Eat more foods high in calcium, such as soy products, bone soup, eggs, milk, lean meat, shrimp, etc.
Pay attention to vitamin supplements: Eat more fresh fruits and vegetables containing vitamins.
Pay attention to enhancing resistance: Eat more foods that enhance the body's disease resistance, such as mushrooms, honey, fungus, kelp, citrus, jujube, etc.
Eat some anti-radiation foods: Although computers have a small impact on human health, they should be prevented. Drinking tea can reduce the harm of radiation, and the lipopolysaccharide in tea has anti-radiation effects. Spirulina and sea buckthorn oil also have anti-radiation effects.
In addition, you should wash your face after using the computer and exercise regularly.
The location of your computer is very important. Try not to let the back of the screen face people, because the computer radiates the strongest radiation from the back, followed by the left and right sides, and the front of the screen radiates the weakest. As long as the words can be read clearly, the distance should be at least 50 cm to 75 cm. This can reduce the damage of electromagnetic radiation.
Pay attention to indoor ventilation: Scientific research has confirmed that computer screens can produce a carcinogen called brominated dibenzofurans. Therefore, it is best to install a ventilation fan in the room where the computer is placed. If not, pay special attention to ventilation when surfing the Internet.
It’s not good to face the computer for a long time, what should I do? In fact, four cups of tea a day can not only fight against radiation damage, but also protect your eyes.
1. A cup of green tea in the morning:
Green tea contains powerful antioxidants and vitamin C, which can not only remove free radicals in the body, but also secrete hormones that fight stress. The small amount of caffeine contained in green tea can stimulate the central nervous system and cheer up. However, it is best to drink it during the day so as not to affect your sleep.
2. A cup of chrysanthemum tea in the afternoon:
Chrysanthemum has the effect of improving eyesight and clearing the liver. Some people simply drink chrysanthemum and wolfberry together, or add it to chrysanthemum tea. Honey is helpful in relieving depression.
3. A cup of wolfberry tea when you are tired:
Wolfberry is rich in beta carotene, vitamin B1, vitamin C, calcium, and iron. It has the functions of nourishing the liver, benefiting the kidneys, and improving eyesight. effect. It has a sweet taste and can be made into tea or used as snacks like raisins. It is effective in solving eye aches and fatigue of "computer users".
4. A cup of cassia tea in the evening:
Cassia seeds can clear away heat, improve eyesight, nourish the brain, calm liver qi, and benefit muscles and bones. If you have constipation, you can also drink it with dinner. Drinking it afterwards is very effective in treating constipation.
There are also some teas or snacks that are most suitable for computer users. They can not only help you fight against radiation damage, but also protect your eyes and resist irritability.
Mung bean and coix seed soup
Mung bean can clear away heat and detoxify, diuretic and reduce swelling, while coix seed can strengthen the spleen and stop diarrhea, lighten the body and replenish qi. It is suitable for workers who often need to stay up late or people who are upset. When you suffer from irritability, dry mouth, constipation, or acne, in addition to eating more fruits and vegetables and replenishing water, eating mung bean and coix seed soup as a snack is very helpful in relieving heat and troubles.
Eucommia tea
Eucommia tea has the function of nourishing blood and strengthening muscles and bones. It is very helpful for back pain caused by sitting for a long time. Both men and women can drink it. If you are a female friend, you can also drink it. Take it with Siwu Decoction at the end of menstrual period.