Knowledge about computer radiation

When you face the computer, operate it freely, and live a happy online life, you have thought about the electromagnetic radiation it generates that will affect your health.

Is it unfavorable to give birth?

When you sit in front of a computer for several hours or even more than ten hours a day, what harm might the electromagnetic radiation it emits do to you?

As you are exposed to computers for many years, the radiation dose you receive continues to accumulate and increase. Like smoking, over time, irreparable damage may suddenly occur

as a result of. What biological effects does low-frequency, low-intensity electromagnetic radiation have on the body? How to prevent or reduce the harm of electromagnetic radiation

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Beware of the harm caused to you by electromagnetic radiation emitted by computers

< p>Is electromagnetic radiation harmful to the human body? The answer is yes. During World War II, it was discovered that infertility, hair loss and cataracts were occupational diseases among radar soldiers. Personnel engaged in radio frequency operations often suffer from adverse effects such as neurasthenia, impatience, irritability, hair loss and excessive sweating, irregular menstruation in women, decline in sexual function, and a decrease or increase in the number of white blood cells and red blood cells in the blood. Therefore, workers in the near field area must wear protective clothing. Protective clothing made of copper wire fabric. It is common knowledge that high-frequency and high-intensity electromagnetic radiation is harmful to the human body. Does low-frequency and low-intensity electromagnetic radiation also have adverse effects on human health? For example, is the electromagnetic radiation generated by computers and household appliances also harmful to the human body? Maybe you can't answer clearly. The following information will help you understand this problem.

In recent years, news media have reported on the research results and investigation reports of relevant domestic and foreign institutions and experts, which has attracted people's attention. A report from the U.S. National Radiation Protection Board found that low-frequency electromagnetic waves can cause cancer, coronary disease, Parkinson's disease and Alzheimer's disease in humans.

The Japan Computer Labor and Health Investigation Committee conducted a survey on 250 pregnant computer operators in 1995. Among them, 18 suffered from gestational poisoning, 35 had miscarriages, and 97 had stillbirths, with an incidence rate of 60%. . Hubei Province conducted a survey on computer operators of the Postal and Telecommunications Savings and Remittance System and found that 8 people became pregnant 10 times during the period of exposure, and 4 people had abnormal pregnancies 6 times, with an incidence rate of 60%. Experts from famous hospitals such as Shanghai discovered that two women had been exposed to computers for a long time and both gave birth to abnormal babies. Coincidentally, four cases of pregnant women gave birth to children with frog deformity in Dalian Maternal and Child Health Hospital. None of them had any family history, and neither husband nor wife was suspected of taking medication. However, the most common thing in common is that they are all computer users. The World Health Organization pointed out in its latest revised opinion on computer screens and worker health that pregnant women who use computers for more than 20 hours a week increase their miscarriage rates by 80% and also increase the incidence of fetal malformations. Experts point out: For a developing fetus, especially in the first three months of pregnancy, when the fetal organs are forming, electromagnetic radiation will cause a series of serious consequences such as embryonic death, organ malformation, and damage to the central nervous system. The incidence of vascular disease among computer operators is 2.8 times higher than that among non-professionals.

Today, the world has entered the digital and networked information age. Computer applications have penetrated into all walks of life. With the development of Internet technology and the rise of e-commerce, it has entered all areas of people's work, study, and life, and is pervasive and ubiquitous. Not only are computers widely used in factories, enterprises, shops, offices, schools, and hospitals, but they have also entered thousands of households and become a household appliance. In particular, service industries such as finance, postal and telecommunications, securities, insurance, and traffic management are inseparable from computers. The era has come when hundreds of millions of people use computers and are exposed to them for long periods of time. Does computer radiation affect human health? It has become a matter of great concern to the majority of users.

Although the electromagnetic radiation emitted by computers is not very strong, some people use it for several hours a day, all year round. The cumulative dose of radiation received in this way is quite large. What impact will it have on sensitive groups such as women, teenagers and children, especially pregnant women with fetuses? What are the consequences? The above information is enough to prompt people to worry and be vigilant.

How does electromagnetic radiation affect human health? What is its biological mechanism of action? Electromagnetic radiation usually produces biological effects on the body through thermal effects, non-thermal effects and stimulation.

Thermal effects are already familiar to everyone. The human body is a dielectric, which is repeatedly polarized under the action of a highly variable electric field. The collision and friction between molecules produce violent motion, converting electrical energy into thermal energy. There are also dielectric solutions (such as body fluids) in the body, which generate conductive current under the action of the electric field, forming closed loops of varying degrees, generating local induced heat flow, resulting in heating. The thermal effect produced by high-frequency radiation, especially microwave radiation, is more obvious. Microwave ovens, microwave therapy devices, etc. utilize the thermal effect principle of radiant energy. Excessive fever and long-term exposure to radiation will cause damage to the human body. The thermal effect of low-frequency electromagnetic radiation is not obvious. Non-thermal effects have an impact on brain cells, weakening the activity of cerebral cortex cells and inhibiting the conditioned reflexes that have been formed. Long-term exposure may cause nervous system dysfunction.

Experiments show that electromagnetic fields can shorten the sleep time of normal people by an average of 20 minutes. A study by Professor Booth, professor of cardiovascular medicine at Freiburg in the United States, found that mobile phone radiation increased the diastolic blood pressure of subjects by 10-20 mm Hg. Stanford University and North Carolina Integrated Experimental Systems studied the effects of radiation from four types of mobile phones on a variety of animal cells. The results showed that radiation can damage the chromosomes of animals. Impact on DNA genetic factors will lead to cell canceration. Calcium ions will precipitate from the cerebral cortex of chicks and cats under the irradiation of low-frequency modulated UHF and VHF electromagnetic waves. Calcium ions are an indispensable substance for information transmission, immune system work and cell reproduction in the body. Experiments also found that low-frequency electromagnetic waves can change the secretion of melatonin in the pineal gland of animals. This hormone has an inhibitory effect on tumor cells. When melatonin is reduced, it can cause changes in tissue molecules and lead to the onset of degenerative diseases.

Stimulating effect: When the electromagnetic wave is below 100KHz, there are two aspects of stimulating effect on the human body. First, the human body will receive electric shock when it comes into contact with non-metallic objects exposed to electromagnetic fields. The lower the frequency, the greater the degree of electric shock; second, the induced current is generated in the body. When the induced current is greater than the body current (brain point and heart point, etc.), it will cause excitement of the cells of the nervous system and visual system. The lower the frequency, the greater the degree of excitement. The bigger. Slight stimulation can cause a numbing sensation. The greater the stimulation, it will cause muscle contraction, followed by pain, excitement of the heart and respiratory organs. In severe cases, subtle ventricular fibrillation will occur, the myocardium will continue to contract, and eventually the heart will stop beating and die.

To sum up, the above can be summarized as follows: (1) Low-frequency electromagnetic radiation from computers and household appliances is harmful to the human body; (2) The harmful effects are different for different groups of people, such as women, children, and the elderly. The weak are sensitive groups, especially the harm to the fetus is greater; (3) The degree of damage is related to the cumulative dose of radiation received; (4) The non-thermal effects and stimulation of low-frequency electromagnetic radiation play the main role. (5) Impact on the human body’s nervous system function, immune system function, circulatory system function and life development function. (6) It remains to conduct in-depth research on molecular biology and processes, cell biology processes and biochemical processes to further explore and reveal its mechanism of action.

How to protect against electromagnetic radiation generated by computers and home computers? Keeping a certain distance from radiation sources is one of the effective protective measures. Because the intensity of electromagnetic radiation decreases with the square of the distance from the radiation source. It is best not to concentrate computers and household appliances indoors where you often spend time. For example: computers, televisions, refrigerators, and microwave ovens should not be placed in the bedroom. Experts recommend that computer users should keep a distance of no less than 70 centimeters from the display screen and no less than 120 centimeters from the sides and rear of the computer. In addition, it is also important to reduce the time spent in contact with computers. Because the cumulative dose received by radiation is proportional to the product of radiation intensity and irradiation time. Therefore, it is necessary to reduce the time on the computer, which is difficult to achieve in practice. However, many people have difficulty maintaining a certain distance from radiation sources in their working and living environments. For example: in an office with multiple computers, the required distance from front to back, left and right cannot be maintained. There are also some people who are not allowed to reduce their working time on the computer and surf the Internet. They operate for 3-4 hours a day without interruption. In this case, the only way is to wear protective clothing and protective hats to directly reduce the body's absorption of radiation.

How to prevent computer radiation

When using a computer, it is best to have a good quality radiation shield 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 better 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. To be able to read the words clearly, the distance should be at least 50 cm to 75 cm, which is about the same as that of the computer.

Pay attention to indoor ventilation: scientific research has confirmed that the computer's 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