Radiation from a computer. How to protect yourself from electromagnetic radiation? Video: the truth behind the cactus from radiation

Modern man every year he spends more and more time in front of a computer monitor, laptop, TV screen, projector. Manufacturers of information display devices, in the fight for their customers, are constantly releasing new lines of models, reducing prices for their products, each time, according to them, improving their characteristics. The buyer, in turn, is often no longer able to understand such an abundance of models presented and makes a choice more emotionally than rationally, completely forgetting about the impact the monitor screen has on vision and general well-being.

Very often, when choosing a monitor, laptop, tablet, TV, etc., we do not think about the possible harmful effects of its screen on health. Working with any information display device - be it a computer monitor, laptop screen, tablet, TV or a sheet of paper - is associated with intense work of the visual organs. In addition to the purely physical tension of the optic tract, increased load, also tests the brain processing incoming information. And the more complex its structure, the worse the conditions for obtaining it, the more more effort required for its perception and processing, and the more Negative influence screen not only on the eyes and vision, but also on human health in general.
The amount of information a person receives through various electronic devices, is growing steadily. At the same time, the time a person works with them increases. And, every year, more and more people begin to notice not only the fact that their eyes are hurting more and more often from the monitor, but also a general deterioration in their well-being. Among the most common symptoms:

• headache;
• increased fatigue;
• loss of concentration;
• discomfort in the eyes (pain, dryness or increased tearing);
• blurred vision;
• memory impairment;
• increased irritability;
• and much more…

Fig. 1 Graph of incidence growth since 1980.
From the incidence growth graph in Fig. 1 we see that the highest growth rate was noted in the 90s-2000s, that is, during the period of mass introduction computer equipment. This is especially pronounced in the growth of pathologies of the organs of vision (primarily due to the seriously increased load on it when working with a computer monitor). A certain decline in the growth rate of diseases in the last decade is probably associated with an improvement in the quality of computer equipment, and, first of all, monitors.
All the symptoms mentioned are often caused by prolonged work at a computer or laptop monitor. For them, foreign sources even introduced a special term - “LCD Syndrome”, i.e. "liquid crystal display syndrome" A complex deterioration in well-being in a person who spends a lot of time looking at a computer, laptop or tablet screen is caused by the fact that the display can negatively affect not only vision, but also directly on the human brain, on its biorhythms, as well as on general hormonal levels.

What computer monitor parameters have a negative impact on health.

The main unfavorable factors when working with a computer display are (as the degree of danger decreases):

• flickering (pulsation) of image brightness;
• increased image brightness levels;
• unsatisfactory external lighting conditions;
• poor quality images (clarity, contrast, focusing, uneven brightness, etc.);
• ultraviolet radiation;
• improperly equipped workplace;
• electromagnetic radiation;
• poor ergonomics and poor monitor design ( glossy screen, bright parts or indicators on the front panel, poor screen position adjustment, etc.).

Flickering image brightness simultaneously negatively affects both human vision and brain function. The effect of pulsations is described in more detail in the section “The impact of monitor flickering on human vision and brain.”

Ripple on the monitor screen can be caused by several reasons, which are described in the article “Disadvantages of LCD monitors. Causes of image flickering - backlight, VCOM, lighting, grounding and electro magnetic fields».
Requirements for safe levels of electromagnetic radiation, brightness, external lighting and image quality on the monitor screen are formulated in sanitary standards, a summary of which is given in the material “Computer Screen. Sanitary standards. Requirements for location, image quality, radiation level, workplace arrangement.”
Almost all types modern monitors emit some ultraviolet radiation. Prolonged exposure to ultraviolet radiation when working at a computer monitor negatively affects human vision. This is a serious problem. Read more about it in “LCD monitor backlight. The harm of fluorescent lighting."
Is it possible to reduce the health harm from a computer monitor? Definitely yes. Of course, it is best when purchasing a display or laptop to take care of choosing the most secure and quality model. To do this, read the material “How to choose and buy the right safe monitor", where we give recommendations on choosing the safest model in terms of negative health effects.
And finally, in the article “How to properly set up a computer monitor,” we give advice on how to make sure that working with a computer display or laptop screen not only does not harm your health, but is also as comfortable and productive as possible. Make your computer monitor your real assistant and partner!

We all know that the space around us is filled with all kinds of energy fields and electromagnetic radiation coming from all household appliances (TV, radio, refrigerator and others).

IN Lately joined this range of sources of electromagnetic radiation computer .

On the one hand, this is a unique device, without which many people cannot imagine their life and work; it is an inexhaustible source of knowledge. Everyone now knows the word "Internet".

On the other hand, The computer is the source of many diseases. The phrases “chronic fatigue syndrome” and “information stress” are also familiar to many. And that is not all.

The threat of exposure to electromagnetic field radiation on the human body has long been a scientifically proven fact. A number of diseases are associated with the influence of electromagnetic fields on the human body.

The nervous, immune, endocrine and circulatory systems are primarily affected. This is expressed in increased fatigue, headaches, sleep disorders, allergies, anemia, and reproductive dysfunction.

I think it would be appropriate to say that the Chinese called the radiation coming from the computer “dragon teeth”. Since the source of electromagnetic fields is electricity, high-current wires create powerful magnetic fields - invisible lines of force that easily penetrate everything that comes in their way, including penetrating the human body.

Scientists have found that the greatest radiation from computer is coming in front and to the right of the user. This radiation exceeds permissible standards. In the 1980s, scientists discovered that low-intensity electromagnetic fields negatively affect the ability of T lymphocytes to destroy tumor cells. This means that such fields suppress the immune system and thereby contribute to the formation of tissue tumors and blood diseases.

I will address your Special attention that when exposed to weak electromagnetic fields generated by the display, tissue responses may follow repeated pulses of the field. As a result, the rhythmicity of vibrations of tissue elements will repeat the temporal periodicity of the field - this phenomenon is called “increase”. As a result, cellular immunity and the activity of various enzymes may change, similar to what happens when tumor growth is stimulated.

Scientists have found that people who work on computers are much more likely to have children with birth defects. Measuring the radiation emanating from the monitor, we found that it was as close as possible to sawtooth. This has an extremely negative effect on the embryo, especially in the early stages of development. In this case, the nervous system of the unborn child suffers the most.

It has been observed that women who work on computers have a relatively higher incidence of miscarriages. Doctors noted that people who work at a computer for more than 2 years experience disturbances in the functioning of the tail of the pancreas, this very important organ of the endocrine system.

But the radiation from the processor, which goes in all directions, is the cause of skin and allergic diseases. The situation is aggravated by the fact that human senses do not perceive electromagnetic fields. A person does not feel this type of radiation and cannot control its level of presence himself. A person knows that there is radiation, but he does not know its intensity. This condition can be defined as “situational stress”.

Simple and magical methods to protect people working on a computer

In order to reduce the level of harmful radiation emanating from the monitor and processor, without resorting to expensive filters and circuits, sometimes it is enough to simply change the location of the computer in the room. To do this, you need to position the computer in relation to the person sitting behind it, from the south or southwest side. Since the field lines of background electromagnetic radiation come from the north pole and end at the south. The computer's background radiation will be contained by natural background radiation coming from the north. As a result, an invisible barrier will arise that protects the person.

The room in which the computer is located must have live plants. It’s especially good if they are pink or red pelargoniums, and plants from the family begonias. Very good plant - pike tail. Flowers must be looked after, they must be watered regularly, and, what is very important, dust must be wiped off them.

But in the immediate vicinity of the computer, on the monitor or to the right of the processor, it is advisable to “settle” cactus. This unique plant will greatly help you protect your health.

It is very good if the room in which you work has a computer aquarium with fish. An aquarium is a must round shape. It should contain odd number of fish. Among these fish there must be at least one gold, red and black fish. It is advisable that the aquarium with fish be in your field of vision when you are working.

It has a great protective effect against harmful computer radiation. red clay. From red clay you must mold with your own hands three balls, each with a diameter of approximately 3 cm. One ball should be placed between the monitor and the keyboard. And the other two should “rest” at this time, preferably on the windowsill so that they get sunlight, and sometimes fresh air.

Every ball should be near the monitor for one week, and cleaned for two weeks. That is, once a week the ball near the monitor is replaced with one of the two located near the window. Once every six months, the clay balls must be completely replaced. Used clay balls are best left in the field.

It also has protective properties rosin. You need to take a piece of rosin, preferably in the shape of a cube with sides measuring at least one and a half cm or a parallelepiped measuring 2 x 4 x 1 cm and place this piece of rosin in front of the monitor. Rosin should be in front of the monitor at all times. It needs to be changed after a year.

We should not forget about such a simple remedy as lime. Lime should be poured into a matchbox the size of a match and placed in open form behind the monitor, at a distance of five centimeters from the back wall of the monitor. Lime must be changed once every three months.

Basically, those who sit for days in an embrace with the old huge “monitor” depicted here should be afraid. And almost no one has these anymore. But let's also give more important tips , which, despite their simplicity, can really save your health and vision.
And then we’ll touch on the topic of radiation, which is not so scary with modern screens.

So, first and most importantly, don’t be afraid of radiation, but take care of your eyesight:

1. When working with a screen, take BREAKS for 10-15 minutes every hour, relax, look into the distance. LED bulbs directly into the eyes, no one has yet helped save their eyesight.

2. Do EYE EXERCISES (rotate your eyes, etc.).

– Watch the LIGHTING: electric light should not be too bright, but also do not create a “cinema” for yourself, working at the monitor in a dark room. AND THERE SHOULD BE NO GLARE on the screen.

3. Install on your computer free program Flux https://justgetflux.com
This program makes working with the monitor much easier for the eyes. Before installing Flux, my eyes got very tired after just 10 minutes of sitting in front of the monitor. And so I installed this application. I even forgot about the previous pain in my eyes; I don’t experience them anymore. The program makes the image on the monitor warmer (in color temperature), and it becomes more suitable for vision. Others who use it write the same thing.

4. MOVE! Sitting motionless in front of a screen for long periods of time harms you worse than any radiation. It is fraught with fatigue, hemorrhoids, osteochondrosis, diabetes and other “charms”.

This problem can be solved by taking regular breaks. Do simple exercises, go outside more often, breathe fresh air. When working for a long time, change your body position, stand up, and walk around. IN free time walk more, play sports.

NOW ABOUT RADIATION ACTUALLY

1. Regarding "X-ray" radiation from monitors, then you don’t have to worry about it too much.
“Ancient” monitors have cathode ray tubes(CRT) it is within the normal range, but liquid crystal ones do not have it at all.
2. But to electromagnetic field should be taken more seriously.

Electromagnetic field namely electron beam monitor (see picture) is quite large and therefore harmful to health. This is especially true for pregnant women. Some experts believe that electromagnetic fields can have a harmful effect on the embryo, starting from the moment of conception and during the first months of pregnancy.

From such a monitor, the field extends to the sides and especially back from it at a distance of up to 1-1.5 m. (Therefore, according to the rules, no one should sit BACK of a cathode-ray monitor).

The vast majority of you have had a LCD monitor for a long time, and although it also creates an electromagnetic field, it is not as intense and harmful as that of cathode-ray screens. Therefore, in terms of safety liquid crystal preferable.

What to do if you have to work specifically on an electron beam a monitor like the one shown in the picture?

First of all, Monique is preferable, compliant with TCO-95, TCO-99 standards or later. Such monitors have built-in protection against electromagnetic radiation (built-in protective screen, special foil inside the case), and therefore they are almost safe. However, for this protection to work, the CRT box must be CORRECTLY grounded. Therefore, if you want to protect yourself from electromagnetic fields, call an electrician to properly ground your monitor. Grounding MUST NOT be made to the working “zero” of the power supply system, battery or water pipe!

The computer is a major breakthrough in the field modern technologies. The ability to communicate via the Internet has become the reason for people to conduct large quantity time in front of the monitor. In this regard, the influence of the computer on the health and human body is of great importance. After all, many users complain about their health. Scientists attribute this to the influence of electromagnetic radiation on people.

Computer damage

Why is a computer harmful? First of all, it harms the eyes. Small vibrations and flicker from the screen can strain the eye muscles, which reduces visual acuity over time.

Working at a computer causes dry eye syndrome for many, which brings a lot of inconvenience and discomfort. Prolonged eye strain can provoke a spasm of accommodation. This is false myopia, it can be eliminated with the help of hardware treatment or certain exercises.

The computer is also harmful to the spine. Constantly being in one position puts stress on only one muscle group. This can provoke their degradation and damage to the intervertebral discs, which leads to osteochondrosis, the appearance of a hernia, headaches, and pain in the internal organs. Children often experience spinal curvature.

The most important negative factor is electromagnetic radiation emanating from the computer. Modern technology has become much safer than older models, but not entirely harmless.

The computer also negatively affects the genitourinary system. Prolonged sitting creates a thermal effect between the chair and the user's body, which leads to stagnation of blood in the pelvic area. The result of this is hemorrhoids, and there is also a risk of prostatitis.

The computer is harmful to the human psyche. It is especially dangerous for the health of children, because popular shooting games often cause great damage to their mental state. Many people are also addicted to the Internet.

Working at a computer reduces the user's physical activity, which disrupts the body's metabolism, causing excess weight and cellulite.

Pregnancy

Is a computer harmful during pregnancy? This is a very important period in a woman’s life. During this period, the child is extremely sensitive to negative external influences. Intrauterine damage to the fetus by electromagnetic radiation is possible at any stage.

Especially expectant mothers need to be careful in the first trimester. At this time, miscarriages occur more often and various malformations of the child appear. Therefore, pregnant women should not forget about the dangers of a computer.

Radiation from a laptop is just as harmful as that from regular computer. You should not place a laptop on your lap, especially during pregnancy, because in this case it will be very close to the fetus.

What effect do computers have on a person during pregnancy when they spend a long time looking at the monitor?

1. A prolonged sitting position disrupts metabolism and blood circulation in the pelvic area, which leads to blood stagnation. This negatively affects the uterus, disrupts blood flow to the baby, and can also lead to hemorrhoids.
2. During pregnancy, due to the severity of the fetus, huge pressure on the spine. By aggravating this with a prolonged sitting position, you can get osteochondrosis, as well as some joint diseases.
3. The harmful effects of computers on vision while carrying a child are also dangerous, especially for those who already have problems in this area. Pregnancy and childbirth can cause rapid progression of the disease.
4. This technique is also harmful to the mental state of the pregnant woman. Computer radiation can cause irritation, depression, and fatigue.

Impact on children

What harm or benefit does a computer bring to children? Currently, children's knowledge of the world is simplified using modern technology. The computer helps develop memory, thinking, and creative skills. Games develop motor coordination, children learn to make independent decisions.

To minimize the harm emanating from a computer, it is necessary to adhere to standard standards. They imply regular ventilation of the room, an LCD monitor, and special furniture.

Improper organization of the workplace can harm the child. However, even if all standards are observed, it is necessary to do exercises and walk in the fresh air.

Symptoms of radiation

At daily work while at the computer, you should know what symptoms indicate an “overdose.” Signs of excessive computer exposure may be confused with stress or overwork. Also, some associate them with old age. The influence of a computer on the human body is characterized by the following symptoms:

• Memory loss, decreased concentration.
• Fatigue, loss of strength.
• Dizziness, frequent headaches.
• Insomnia, irregular sleep.
• Dry skin, itching and flaking, wrinkles appear.
• Pain in muscles, arms and legs.
• Frequent heartbeat.

In the future, radiation from the computer can lead to more disastrous consequences: inflammation of the lymph nodes, the birth of sick children, infertility.

Such symptoms and manifestations indicate electromagnetic hypersensitivity. However, this diagnosis is not recognized by all specialists. Many people believe that these signs can simply be suggested to themselves. But every day more and more people go to the hospital with similar complaints, mostly active PC users.

How to protect yourself from harmful radiation

Modern technology provides a lot of opportunities, but it also has back side– dangerous electromagnetic radiation. By following some recommendations, you can minimize the harm your computer can cause to human health. The following protection methods exist:

1. Highest level radiation is located in the rear panel of the system unit, so the distance from it to another person must be at least 1.5 m.
2. The screen should be installed at a distance of 50-60 cm from the eyes, preferably in the corner of the room, to reduce harmful radiation from its walls.
3. It is necessary to reduce the length of power cables as much as possible.
4. Wet cleaning should be carried out regularly. The use of an ionizer will also additionally protect against PCs.
5. After finishing work, be sure to turn off the computer.
6. When purchasing a monitor, you should choose an LCD monitor marked Low Radiation, indicating a low degree of radiation exposure.
7. There are monitors with special protective screens, which help to minimize harmful effects on the eyes when working for a long time at a PC.
8. System unit should be placed away from you.
9. Several computers in the room should be placed around the perimeter so that the center of the room remains free.

Special glasses

Among the ways to protect against computer harm to your health, you can also highlight computer glasses. By appearance They are no different from ordinary medical glasses, but they have a special coating applied to them. The glasses block the blue spectrum of rays emanating from the screen and protect against its unpleasant flickering.

In addition, they are coated with an antistatic coating that protects the eyes from the effects of a magnetic field, as well as from dust sticking to the lenses, which is very convenient during use.

Computer glasses have the following properties:

• Protects eyes when working in bad conditions environment.
• Reduces stress and strain on the eyes, while the user instinctively moves away safe distance from the screen.
• Prevents the occurrence of dry eye syndrome.
• Eyes wearing such glasses are much less tired during long-term work.

Video: about the dangers of a computer.

CT scan

Computed tomography allows for non-surgical examination and diagnosis of various diseases. However, research shows that this method has a detrimental effect on human health, increasing the risk of more dangerous diseases. At first after a CT scan, the risk of cancer increases by 35%, then this percentage gradually decreases.

There are maximum permissible doses of radiation per year that will not cause significant harm to health. Exceeding them is allowed only if absolutely necessary.

Computed tomography is a diagnostic method that is used last, when to replace alternative method it is forbidden. If it is possible to conduct an examination using ultrasound or other safe ways, it's better to choose them.

Computers and laptops enable millions of users to earn money, communicate, and have fun. However, nothing is more important than human health.

Articles constantly appear in the press about the harmful radiation that comes from computers and, in particular, from monitors. Yes, there is radiation. But not much more than most household appliances. And many times below acceptable standards. However, some “hot heads” are exaggerating this topic. And to draw attention to it even more, they claim radiation emanating from the monitors.

Since Chernobyl, panic about radiation has exceeded all imaginable limits. Many people are ready to believe anything when they hear the word “radiation”. Computers do not, and cannot have, the radiation that occurred in Hiroshima or Chernobyl. All sources of such radiation are strictly controlled by governments and they certainly are not placed in computers.
Once upon a time, while still a student, I studied BJD within the walls of the institute. One of the topics of this subject there was radioactive radiation. That’s when an electronic dosimeter fell into my hands. I share with you the measurement results:

surrounding objects (table, walls, clothes): 10 mR/h;

clothes of students from Sarov (nuclear center): 12 mR/h;

glassware in the laboratory: 14 mR/h;

walls in the basement: 13 mR/h;

piece of granite: 20 mR/h;

monitor screen turned off (CRT, manufactured in 1993): 7 mR/h;

screen of the same monitor in mode maximum resolution: 14 mR/h;

sample of material from Chernobyl (the size of a fingernail in a lead box): 150,000,000 mR/h.

People who talk about computer radiation have confused the monitor with a nuclear reactor. The computer does not emit any radioactive particles (alpha, beta, gamma, neutron).
The word “radiation” in the PC documentation is literally translated as “radiation”. The same word in English means direct bright light - solar radiation - solar radiation. When working at any of the modern monitors, the user absorbs significantly less radiation than when walking along a sunny street. Perhaps ordinary “solar” radiation can cause harm, but here the role of a PC monitor is not noticeable against the general background.

But where did the belief about radiation come from? From bad knowledge in English and the inscriptions on the monitor "Low Radiation". The correct translation into Russian means " low level electromagnetic radiation." A computer actually emits this radiation, just like any electrical device, including a coffee maker. A CRT monitor emits electromagnetic fields especially strongly. We "grab" no less a dose of electromagnetic radiation from a TV, a vacuum cleaner, a trolleybus, and if there is a electrical wiring, then it will be worse than a computer.
Nevertheless, there are people who even believe the ancient joke about how cacti protect against radiation (it was invented without any reason by one of the users of the FIDO network). There are even publications in which cactus needles are compared with antennae, formulas are given and theorems are proven. Alas, if everything was as it is written in these articles, then radars would not work in Mexico. And they work. And no worse than in any other country. The harsh truth of life is that the presence of plants does not in any way affect the level of radiation from the monitor. Rather, plants evoke positive emotions in the grower than have a beneficial effect on the nervous system, negating the harmful effects of electromagnetic fields on it (the nervous system).
The problem of electromagnetic safety when working on displays has not yet received correct arguments for or against and remains open. The debate about the role of electromagnetic radiation in affecting the health of computer users is still ongoing. Without disputing the fact that monitors, like televisions, emit certain types of electromagnetic energy, some believe that staff illnesses have no connection with them. Others believe that radiation is dangerous and can cause various pathologies, including cancer. And as soon as the words “cancer”, “oncology”, “malignant tumor” are uttered, hysteria immediately arises in society.
CRT monitors are a source of almost all types of radiation. But it should be noted that others electrical devices create magnetic fields of much greater intensity. So, for example, a fax machine at a distance of 30 cm creates a field of 300-600 nT, and a copy machine at the same distance creates a field of 2100-3100 nT. The monitor, manufactured in 1993, emits 200 nT under the same measurement conditions. Newer monitors are even smaller: 2-25 nT. However, unlike a fax or copier, the problem of electromagnetic radiation emanating from personal computers, becomes quite acute due to the fact that the PC user works at a close distance to him long time.
The reason for the ambiguity of opinions is the research methodology. Proving the impact of one factor, it is very difficult to exclude the impact of others. Sometimes this causes unreliable results or ambiguous conclusions. One landmark study found that lung cancer is more likely to occur in people who shave their faces with electric razors. Indeed, all statistical calculations were performed without a single error. Men are more likely to suffer from lung cancer. Men shave more often than women. Accordingly, the conclusion was correct: lung cancer is more common in people who shave. From here it is not far to accusations against companies producing “cancer-provoking” household appliances.
Approximately the same situation arises with the electromagnetic hazard of monitors. To date, a significant amount of experimental research has been carried out in the world. But there is no definite answer, and it is not expected in the near future.
To deny the general influence of monitors on health in such conditions is at least unreasonable. But, speaking about the prevention of malignant neoplasms, it is worth noting that electromagnetic fields play a minor role compared to other factors. And if you have already decided to prevent cancer, then you need to start with simpler things: quit smoking, drink alcohol in moderation, exercise regularly and monitor your body weight. These simple and timely measures will actually reduce the risk of cancer several times.
And in conclusion, we will consider in more detail the radiation from the monitor (given in the full format of the book - note by the compiler).
The computer system unit also emits radiation. But he is iron on all sides. Provided it is grounded, electromagnetic radiation cannot escape from it. And if the body is made with plastic windows or even made of plastic? Do you think plastic can create a barrier to such radiation? So a stylish modding case, with plastic windows and light bulbs inside, may not be so attractive.