An increased level of electromagnetic radiation has. Is electromagnetic radiation harmful? Bonus: list of smartphones by electromagnetic radiation strength

We live on a planet that constantly (24 hours, 7 days a week) affects us in various ways. Electromagnetic radiation, whose influence on a person has increased in last years, is one of the main factors that determine not only our everyday life, but also our state of health. Let's consider how exactly the effect of electromagnetic radiation on a person occurs, and what consequences are caused by it.

Sources of electromagnetic radiation

On our planet there is a natural background radiation(PRF) in the form of an endless stream of high-energy particles in which living matter exists. PRF consists of cosmic radiation (about 16%), gamma radiation from the Earth (almost 22%), radiation from living organisms (within 20%), as well as radiation from thoron and radon (42%).

PRF is ionizing radiation, the energy of particles of which, when absorbed by a cell of the body, is capable of inducing the decomposition or excitation of substances into molecular level. Within 1 hour, an average of 200 million to 6 billion such transformations occur in living cells. It turns out that all organisms on Earth at every second, from the moment of conception to death, fall under the influence of electromagnetic radiation of natural origin.

As people developed, they began to use electromagnetic energy for your own purposes. Thus, humanity has created an electromagnetic field (EMF) of artificial origin. But in the short period of its existence, it has already significantly exceeded the level of the PRF. World energy resources double almost every 10 years, which also affects the growth of EMF.

The greatest impact of electromagnetic radiation on the health of humans and other animal organisms occurs in man-made radio frequency EMF and low frequency fields. Thus, in the localization of substations and overhead lines of ultra-high voltage, the intensity of industrial magnetic field higher than the natural level of the planet’s magnetic fields on average by 2-3 orders of magnitude.

With the development of artificial EMF due to the use of radio transmitting means of communication (including mobile phones, televisions, radios, computers, etc.), the phenomenon of electromagnetic pollution, or “smog,” arose. Non-ionizing electromagnetic radiation low frequencies(up to 1000 Hz) are created by electric transport, numerous transmission lines and cable routes. Some WHO experts believe that today the level of EM pollution on the planet is equal to its chemical pollution.

One of the strongest impacts of electromagnetic radiation on humans in cities is exerted by radio and television transmission centers, which emit ultrashort high-frequency waves around themselves. The strong influence of electromagnetic waves on the human body from household electrical appliances has long been noted. For comparison: when a person dries his hair with a hairdryer, the device influencing him produces magnetic induction within 2000 μT, while the natural EM background of the Earth does not exceed 30-60 μT. Mobile phones, of which some people have several, emit decimeter waves of great penetrating power. Microwave ovens use the energy of ultra-high-frequency electromagnetic waves to cook and heat food.

Interaction of EMF with the human body

To date, a lot of research has reliably established the impact of electromagnetic fields on humans that arose anthropogenically. Man-made EMFs carry streams of different lengths and frequencies, unfavorable resonance phenomena, ultra-high-frequency radiation, against which the human body has not yet developed protection.

Regular exposure electromagnetic field artificial origin can affect people’s performance, ability to remember, attention, and lead to many diseases of various organ systems. The anthropogenic magnetic background significantly increases the likelihood of developing cardiovascular and endocrine diseases, malignant tumors, immunodeficiency, and erectile dysfunction in men.

But if strong impact electromagnetic fields on the human body have been sufficiently studied, the influence weak effects in many ways still remains a mystery. It is assumed that it is weak exposures that have an indirect effect in the form of carcinogenic and genetic effects.

Let's consider how low- and high-frequency electromagnetic fields influence the human body.

Effects of Low Frequency EMF on the Human Body

The impact of a low-frequency electromagnetic field on a person occurs in such a way that the latter plays the role of a conductor. Low frequency EMF provokes the creation of current in the body. Since electromagnetic waves in this case have a length many times greater than the size of a person, they have an effect on the entire body. Our tissues and organs have different structures from each other, that is, they have different electrical properties. Because of this, human exposure to low-frequency EMF will differ depending on different parts bodies. The structures of the nervous system are the most sensitive to low-frequency radiation.

The influence of electromagnetic radiation on the human body is manifested in a slight increase in the temperature of tissues directly in contact with low-frequency waves. The effects of low-frequency wave radiation on increasing the production of hormones from the pituitary gland and adrenal cortex were studied, which in most cases leads to the activation of elements of the reproductive system.

Researchers have established a certain connection between the development of cancer and the influence of the electromagnetic field on the human body, but these results require additional analyzes and repetitions. Today, the role of low-frequency EMF on the occurrence of leukemia and brain cancer in humans has been precisely determined. different ages who are regularly exposed to radiation.

Ultra-low frequency electromagnetic radiation is also dangerous for the human body. They can have the same effect on a person's electromagnetic field as radiation.

How do high frequency EMFs affect humans?

The body's response to high-frequency radiation (as opposed to low-frequency EMF) manifests itself in heating of tissues directly exposed to radiation. Moreover, the thermal reaction increases in proportion to the increase in the EMF frequency. Unlike low-frequency current, high-frequency current does not lead to excitation of nerve and muscle cells.

The influence of electromagnetic fields on a person can occur both locally (on certain areas of the body) and on the entire body. This depends on whether the effect of electromagnetic radiation on the human body occurs completely or partially, and also on the wavelength.

The energy of microwave radiation is most absorbed by the aqueous media of the body. These waves almost do not interact with the skin and fatty tissue, but have an effect on muscle fibers and internal organs. The effects of low-intensity microwave radiation on the central nervous system of people are now being studied in detail. It was found that it has a cardiotropic effect on the body.

Special attention should be paid to the effect of microwave radiation on human health. The largest share of microwave pollution comes from radio stations and those objects that generate electromagnetic radiation in the microwave range. Workers at such stations regularly experience migraines, malaise, lethargy, memory problems, etc.

Depending on the nature of the irradiation and the dose, damage from microwaves is usually divided into acute and chronic. Acute lesions are characterized by a thermogenic effect and short-term exposure to radiation. With chronic damage, microwaves affect the human body for a long time. The scary thing is that the influence of electromagnetic radiation on the human body in this case manifests itself remotely, and therefore it is extremely difficult to identify its effects.

Numerous studies have established the high sensitivity of certain organs and tissues to the influence of EMF, namely:

  • central nervous system (overexcitation of nerve cells);
  • organs of vision;
  • gonads (men develop impotence, testosterone production decreases, and women may experience miscarriages, toxicosis during pregnancy, pathologies in the intrauterine development of the fetus);
  • organs of the cardiovascular system (myocardial dystrophy, coronary insufficiency, etc.);
  • endocrine glands;
  • immune system(with chronic exposure, leukopenia may develop).

The influence of the electromagnetic field on human health is manifested in three types of reactions on the part of the latter: excitation, heating and cooperation. Much has been devoted to the first two scientific works, the third remains poorly studied.

Every organ in our body vibrates, creating an electromagnetic field around itself. Any living organism on earth has an invisible shell that promotes the harmonious functioning of the entire body system. It doesn’t matter what it’s called – biofield, aura – this phenomenon has to be taken into account.

When our biofield is exposed to electromagnetic fields from artificial sources, this causes changes in it. Sometimes the body successfully copes with this influence, and sometimes it does not, resulting in a serious deterioration in well-being.

EMR (electromagnetic radiation) can be emitted by office equipment, household appliances, smartphones, telephones, and vehicles. Even a large crowd of people creates a certain charge in the atmosphere. It is impossible to completely isolate yourself from the electromagnetic background; it is present in one degree or another in literally every corner of planet Earth. It just doesn't always work.

The sources of EMR are:

  • microwaves,
  • devices with mobile communications,
  • TVs,
  • transport,
  • sociopathogenic factors – large crowds of people,
  • power lines,
  • geopathogenic zones,
  • solar storms,
  • rocks,
  • psychotropic weapon.

Scientists cannot decide how harmful EMR is and what exactly is the problem. Some argue that electromagnetic waves themselves pose a danger. Others say that this phenomenon in itself is natural and does not pose a threat, but what information this radiation transmits to the body often turns out to be destructive for it.

The latter version is supported by experimental results indicating that electromagnetic waves have an information, or torsion, component. Some scientists from Europe, Russia and Ukraine argue that it is torsion fields that transmit any negative information to the human body and harm it.

However, in order to check how strongly the information component destroys health and to what extent our body can resist it, it is necessary to conduct more than one experiment. One thing is clear - to deny the influence of electromagnetic radiation on the human body is, at least, careless.

EMR standards for humans

Since the earth is full of sources of natural and artificial magnetic radiation, there is a frequency that either has a good effect on health, or our body successfully copes with it.

Here are the frequency ranges that are safe for health:

  • 30-300 kHz, occurring at a field strength of 25 Volts per meter (V/m),
  • 0.3-3 MHz, at a voltage of 15 V/m,
  • 3-30 MHz – voltage 10 V/m,
  • 30-300 MHz – voltage 3 V/m,
  • 300 MHz-300 GHz – intensity 10 μW/cm 2.

Mobile phones, radio and television equipment operate at these frequencies. The limit for high-voltage lines is set at a frequency of 160 kV/m, however real life they emit EMR radiation 5-6 times less than this indicator.

If the intensity of EMR differs from the given indicators, such radiation can cause harm to health.

When EMR harms health

Weak electromagnetic radiation with low power/intensity and high frequency is dangerous for a person because its intensity coincides with the frequency of his biofield. Because of this, resonance occurs and systems, organs begin to work incorrectly, which provokes the development of various diseases, especially in those parts of the body that were previously weakened in some way.

EMR also has the ability to accumulate in the body, which is its greatest danger to health. Such accumulations gradually worsen the state of health, decreasing:

  • immunity,
  • stress resistance,
  • sexual activity,
  • endurance,
  • performance.

The danger is that these symptoms can be attributed to a large number diseases. At the same time, in our hospitals, doctors are not yet in a hurry to take seriously the influence of electromagnetic radiation on the human body, and therefore the likelihood of a correct diagnosis is very low.

The danger of EMR is invisible and difficult to measure; it is easier to look at bacteria under a microscope than to see the relationship between the source of radiation and poor health. Intense EMR has the most destructive effect on the circulatory, immune, reproductive systems, brain, eyes, gastrointestinal tract. A person may also develop radio wave sickness. Let's talk about all this in more detail.

Radio wave disease as a diagnosis

The effect of electromagnetic radiation on the human body has been studied since the 1960s. Then pundits established that EMR provokes processes in the body that lead to failures in its most important systems. At the same time, the medical definition of “radio wave disease” was introduced. Researchers say that symptoms of this disease are observed to one degree or another in a third of the world's population.

At the initial stage, the disease manifests itself as:

  • dizziness,
  • headaches,
  • insomnia,
  • fatigue,
  • deterioration in concentration,
  • depressive states.

Agree, similar symptoms can be observed in a number of other diseases of a more “tangible” nature. And if the diagnosis is incorrect, then radio wave disease makes itself felt with more serious manifestations, such as:

  • cardiac arrhythmia,
  • drop or increase in blood sugar levels,
  • persistent respiratory diseases.

This is what the big picture looks like. Now let’s look at the effect of EMR on various systems of the body.

EMR and the nervous system

Scientists consider the nervous system to be one of the most vulnerable to EMR. The mechanism of its influence is simple - the electromagnetic field disrupts the permeability of the cell membrane to calcium ions, which has long been proven by scientists. Because of this nervous system malfunctions, functions in the wrong mode. Also, an alternating electromagnetic field (EMF) affects the condition of the liquid components of nerve tissue. This produces abnormalities in the body such as:

  • slower reaction
  • changes in the EEG of the brain,
  • memory impairment,
  • depression of varying severity.

EMR and the immune system

The effect of EMR on the immune system was studied by experimenting on animals. When individuals suffering from various infections were irradiated with EMF, the course of their disease and its character became aggravated. Therefore, scientists have come to the theory that EMR disrupts the production of immune cells, leading to the occurrence of autoimmunity.

EMR and the endocrine system

The researchers found that under the influence of EMR, the pituitary-adrenaline system was stimulated, which resulted in an increase in the level of adrenaline in the blood and an increase in the processes of its coagulation. This entailed the involvement of another system - the hypothalamus-pituitary-adrenal cortex. The latter are responsible, in particular, for the production of cortisol, another stress hormone. Their incorrect operation leads to the following consequences:

  • increased excitability,
  • irritability,
  • sleep disorders, insomnia,
  • sudden mood swings,
  • strong surges in blood pressure,
  • dizziness, weakness.

EMR and the cardiovascular system

The state of health determines to some extent the quality of the blood circulating throughout the body. All elements of this liquid have their own electric potential, charge. Magnetic and electrical components can provoke either destruction or adhesion of platelets, red blood cells and block the permeability of cell membranes. EMR also affects the hematopoietic organs, disabling the entire system of formation of blood components.

The body reacts to such violations by releasing an additional portion of adrenaline. However, this does not help, and the body continues to produce stress hormones in large doses. This “behavior” leads to the following:

  • the functioning of the heart muscle is impaired,
  • myocardial conductivity deteriorates,
  • arrhythmia occurs
  • BP jumps.

EMR and the reproductive system

It has been revealed that the female genital organs - the ovaries - are more susceptible to the effects of EMR. However, men are not protected from this kind of influence. The overall result is a decrease in sperm motility and their genetic weakness, so the X chromosomes dominate, and more girls are born. There is also a very high probability that EMR will cause genetic pathologies leading to deformities and birth defects.

Effect of EMR on children and pregnant women

EMF affects the brain of children in a special way due to the fact that their body-to-head size ratio is larger than that of an adult. This explains the higher conductivity of the medulla. Therefore, electromagnetic waves penetrate deeper into the child's brain. The older the baby becomes, the thicker the bones of his skull, the content of water and ions decreases, and therefore conductivity decreases.

Developing and growing tissues are most affected by EMR. A child under 16 years of age is actively growing, so the risk of pathologies from strong magnetic influences at this period of a person’s life is the highest.

For pregnant women, EMF poses a threat to both their fetus and their health. Therefore, it is desirable to minimize the influence of the electromagnetic field on the body, even in acceptable “portions”. For example, when a pregnant woman, her entire body, including the fetus, is exposed to a slight EMR. How this will all affect later, whether it will accumulate and have consequences, no one can say for sure. However, why check for yourself? scientific theories? Isn't it easier to meet people in person and have long conversations than to chat incessantly on a cell phone?

Let's add to this that the embryo is much more sensitive than the mother's body to various kinds of influences. Therefore, EMF can make pathological “adjustments” to its development at any stage.

The period of increased risk includes the early stages of embryonic development, when stem cells “decide” what they will become in adulthood.

Is it possible to reduce exposure to EMR?

The danger of the influence of the electromagnetic field on the human body lies in the invisibility of this process. Therefore, the negative effect can accumulate for a long time, and then it is also difficult to diagnose. However, there are some simple steps you can take to protect yourself and your family from the ravages of EMFs.

Completely “turning off” electromagnetic radiation is not an option, and it won’t work. But you can do the following:

  • identify devices that create a particular EMF,
  • purchase a special dosimeter,
  • turn on electrical appliances one by one, and not all at once: mobile phone, computer, microwave oven, TV should work at different times,
  • do not group electrical appliances in one place, distribute them so that they do not enhance each other’s EMF,
  • Do not place these devices near the dining table, work table, resting or sleeping places,
  • the children's room is subject to careful monitoring for sources of EMR; do not allow radio-controlled or electric toys, a tablet, a smartphone, a laptop,
  • The outlet to which the computer is connected must be grounded,
  • The radiotelephone base creates a stable magnetic field around itself within a radius of 10 meters, remove it from the bedroom and desk.

It is difficult to give up the benefits of civilization, and it is not necessary. To avoid the harmful effects of EMR, it is enough to think carefully about what electrical appliances you surround yourself with and how to place them at home. The leaders in EMF intensity are microwave ovens, electric grills, and devices with mobile communications - you just need to take this into account.

And finally one more useful advice– when purchasing household appliances, give preference to those with a steel body. The latter is capable of shielding radiation emanating from the device, minimizing its impact on the body.

Every apartment is fraught with danger. We don’t even suspect that we live surrounded by electromagnetic fields (EMF), which a person can neither see nor feel, but this does not mean that they do not exist.

Since the very beginning of life, there has been a stable electromagnetic background (EMF) on our planet. For a long time it was practically unchanged. But, with the development of humanity, the intensity of this background began to grow at incredible speed. Power lines, an increasing number of electrical appliances, cellular communications - all these innovations have become sources of “electromagnetic pollution”. How does the electromagnetic field affect the human body, and what might be the consequences of this influence?

What is electromagnetic radiation?

In addition to the natural EMF created by electromagnetic waves (EMW) of various frequencies coming to us from space, there is another radiation - household radiation, which occurs during the operation of various electrical equipment found in every apartment or office. Every household appliance, take at least an ordinary hair dryer, passes through itself during operation. electricity, forming an electromagnetic field around. Electromagnetic radiation (EMR) is the force that manifests itself when current passes through any electrical device, affecting everything that is near it, including a person, who is also a source of electromagnetic radiation. The greater the current passing through the device, the more powerful the radiation.

Most often, a person does not experience a noticeable impact of EMR, but this does not mean that it does not affect us. Electromagnetic waves pass through objects imperceptibly, but sometimes most sensitive people feel some tingling or pinching.

We all react differently to EMR. The body of some can neutralize its effects, but there are individuals who are maximally susceptible to this influence, which can cause various pathologies in them. Long-term exposure to EMR is especially dangerous for humans. For example, if his house is located near a high-voltage transmission line.

Depending on the wavelength, EMR can be divided into:

  • Visible light is the radiation that a person is able to perceive visually. Light wavelengths range from 380 to 780 nm (nanometers), meaning visible light wavelengths are very short;
  • Infrared radiation lies on the electromagnetic spectrum between light radiation and radio waves. The length of infrared waves is longer than light and is in the range of 780 nm - 1 mm;
  • radio waves. They are also microwaves that are emitted by a microwave oven. These are the longest waves. These include all electromagnetic radiation with waves longer than half a millimeter;
  • ultraviolet radiation, which is harmful to most living things. The length of such waves is 10-400 nm, and they are located in the range between visible and x-ray radiation;
  • X-ray radiation is emitted by electrons and has a wide range of wavelengths - from 8·10 - 6 to 10 - 12 cm. This radiation is known to everyone from medical devices;
  • gamma radiation is the shortest wavelength (the length of such a wave is less than 2·10−10 m), and has the most high energy radiation. This type of EMR is the most dangerous for humans.

The picture below shows the entire spectrum of electromagnetic radiation.

Radiation sources

There are many EMR sources around us that emit electromagnetic waves into space that are not safe for the human body. It is impossible to list them all.

I would like to focus on more global ones, such as:

  • high-voltage power lines with high voltage and high levels of radiation. And if residential buildings are located closer than 1000 meters to these lines, then the risk of cancer among residents of such houses increases;
  • electric transport - electric and metro trains, trams and trolleybuses, as well as ordinary elevators;
  • radio and television towers, the radiation of which is also particularly dangerous for human health, especially those installed in violation of sanitary standards;
  • functional transmitters - radars, locators that create EMR at a distance of up to 1000 meters, therefore, airports and weather stations try to be located as far as possible from the residential sector.

And on simple ones:

  • household appliances, such as a microwave oven, computer, TV, hair dryer, chargers, energy-saving lamps, etc., which are found in every home and are an integral part of our life;
  • mobile phones, around which an electromagnetic field is formed, affecting the human head;
  • electrical wiring and sockets;
  • medical devices - X-rays, computed tomographs, etc., which we encounter when visiting medical institutions that have the strongest radiation.

Some of these sources have a powerful effect on humans, others not so much. All the same, we have used and will continue to use these devices. It is important to be extremely careful when using them and be able to protect yourself from negative effects in order to minimize the harm they cause.

Examples of sources of electromagnetic radiation are shown in the figure.

Effect of EMR on humans

It is believed that electromagnetic radiation has a negative impact on both human health and his behavior, vitality, physiological functions and even thoughts. The person himself is also a source of such radiation, and if other, more intense sources begin to influence our electromagnetic field, then human body There may be complete chaos, which will lead to various diseases.

Scientists have found that it is not the waves themselves that are harmful, but their torsion (information) component, which is present in any electromagnetic radiation, that is, it is the torsion fields that have the wrong effect on health, transmitting negative information to a person.

The danger of radiation also lies in the fact that it can accumulate in the human body, and if you use, for example, a computer, mobile phone, etc. for a long time, then headaches, high fatigue, constant stress, decreased immunity are possible, and the likelihood of diseases of the nervous system and brain. Even weak fields, especially those that coincide in frequency with human EMR, can cause harm to health by distorting our own radiation, and thereby causing various diseases.

Electromagnetic radiation factors have a huge impact on human health, such as:

  • source power and nature of radiation;
  • its intensity;
  • duration of exposure.

It is also worth noting that exposure to radiation can be general or local. That is, if you take a mobile phone, it affects only a separate human organ - the brain, but the radar irradiates the entire body.

What kind of radiation arises from certain household appliances, and their range, can be seen from the figure.

Looking at this table, you can understand for yourself that the further the radiation source is located from a person, the less its harmful effect on the body. If a hairdryer is in close proximity to the head, and its impact causes significant harm to a person, then the refrigerator has practically no effect on our health.

How to protect yourself from electromagnetic radiation

The danger of EMR lies in the fact that a person does not feel its influence in any way, but it exists and greatly harms our health. While workplaces have special protective equipment, things are much worse at home.

But it is still possible to protect yourself and your loved ones from the harmful effects of household appliances if you follow simple recommendations:

  • purchase a dosimeter that determines the intensity of radiation and measure the background from various household appliances;
  • do not turn on several electrical appliances at once;
  • keep your distance from them if possible;
  • place devices so that they are located as far as possible from places where people spend a long time, for example, a dining table or a recreation area;
  • children's rooms should contain as few radiation sources as possible;
  • there is no need to group electrical appliances in one place;
  • The mobile phone should not be brought closer to the ear than 2.5 cm;
  • Keep the telephone base away from the bedroom or desk:
  • do not be located close to a TV or computer monitor;
  • turn off devices you don't need. If you are not currently using a computer or TV, you do not need to keep them turned on;
  • try to reduce the time you use the device, do not stay near it all the time.

Modern technology has firmly entered our everyday life. We cannot imagine life without a mobile phone or computer, as well as a microwave oven, which many have not only at home, but also in the workplace. It’s unlikely that anyone will want to give them up, but it’s within our power to use them wisely.

Every person thinks about their health and well-being from time to time. IN Lately More and more often, people are faced with the problem of frequent illness, deterioration of health, rejuvenation of diseases and more severe forms of disease.

What are the reasons for such a dramatic change in overall health indicators? A person is influenced every day by a huge number of factors that, one way or another, leave their mark on us.

This manifests itself in increased nervous tension at work, poor diet, lack of routine, disturbed sleep, external factors, such as radiation of various types. All this does not pass without a trace for the body, and certainly nothing positive comes from such a way of existence.

External radiation

If a person still has the opportunity to somehow adjust and adjust his schedule and lifestyle depending on the situation, then there are influencing factors that do not depend on us, for example, external radiation.

Every day more and more new technology enters our lives, without which it is difficult to imagine our existence at this stage of technology development. Think about how many devices you use in one day? Phones are always with us, the computer is always on, microwave ovens, air conditioners, televisions, and many other various devices that make our lives easier, on the one hand, saving time, but negatively affect our health, on the other. The greatest harm is caused by devices whose operation is based on electromagnetic waves.

How does electromagnetic radiation affect the human body?

It has long been known that electromagnetic radiation has a negative impact on humans. We are surrounded by technology and wires everywhere. An excess of such influences entails changes in the human immune background, which leads to various diseases that could have been avoided by being in a healthy environment and environment.

A person has a protective biofield, which, in turn, is subject to negative influence from the outside, and every day these factors destroy this shell with their force, the more strongly the greater the force of influence on the person.

In other words, how more people surrounds himself with emitting devices, the more negatively he receives and accelerates the process of destruction of the protective shell.

Every day, many people encounter such a strong source of electromagnetic radiation as a computer, modern man spends most of his free time in front of a monitor, and people whose work is directly related to a computer can be under the influence of a radiation source for up to 17-18 hours a day. A computer can be considered one of the main sources of electromagnetic radiation. When a computer is running, an electromagnetic field is created around it, which reduces ionization environment, it is also worth considering that during operation, technical means tend to heat up, as a result of which the air also heats up and dries it out.

Dry air leads to allergic reactions and can also contribute to the development of respiratory diseases.

The cardiovascular system and nervous system are also highly sensitive to the effects of electromagnetic radiation, this was revealed based on the results of studies.

Radiation can cause:

  • nervous disorders;
  • sleep disturbance;
  • significant deterioration in visual activity;
  • weakening of the immune system; various disorders of life-forming processes;
  • disorders of the cardiovascular system.

People are still debating how harmful and dangerous the radiation in question is. Some try not to pay attention to this, because it is extremely difficult to reduce the impact at this stage of technology development, while others, on the contrary, exclude all auxiliary equipment from their lives and, if possible, healthy image life, try to go to environmentally friendly places and surround themselves with nature.

Results

There is no doubt that all kinds of radiation have a negative impact on living organisms and do not bring benefits, however, it is quite difficult to avoid them. But there is an option to try to reduce the intensity of such impacts, try to reduce the use of emitting equipment in cases where it is possible to do without it. By reducing the dose of radiation received, you can protect the body and take care of your health.

The interaction of external electromagnetic fields with the human body is carried out by inducing internal fields and electric currents, the magnitude and distribution of which in the human body depends on the following basic parameters:

size, shape, anatomical structure of the body;

electrical and magnetic properties tissues (electrical and magnetic conductivity and permeability);

characteristics of the electromagnetic field (frequency, intensity, etc.).

All this determines the complex nature of the effect of EMR on the human body, which represents a specific volumetric-spatial composition of various organs and tissues made of dielectric and conductive material. This impact can be represented as follows.

The human body consists of many cells with liquid content and intercellular fluid, which is an electrolyte. Cell membranes are good dielectrics and reliably isolate the intracellular phase. As a result, ionic currents arise in a constant electric field, which flow only through the intercellular fluid.

In variable EMFs, cell membranes lose their dielectric properties. With increasing frequency, the intracellular environment increasingly participates in the total ionic conductivity, which leads to an increase in energy absorption. At an EMF frequency of more than 10 6 ... 10 7 Hz, the ionic conductivity of the medium remains almost constant, and energy absorption continues to increase due to losses due to vibration of the resulting dipole molecules of the medium (mainly water and proteins).

Thus, the absorption of EMR energy in tissues is carried out due to the electrical resistance of the medium when conduction currents arise (loss of ionic conductivity) and due to friction (rotation) of dipole molecules in a viscous medium (dielectric losses). The consequence of the absorption of EMR energy is a thermal effect, i.e. heating human tissue. The greater the field strength and exposure time, the stronger the indicated effect.

The absorption and distribution of absorbed energy inside the body also significantly depends on the shape, size and ratio of the body size to the radiation wavelength. From these positions, 3 areas can be distinguished in the EMR spectrum:

EMR with a frequency of up to 30 MHz;

EMR with a frequency from 30 MHz to 10 GHz;

EMR with a frequency of more than 10 GHz.

The first region is characterized by a rapid decrease in the absorption value with decreasing frequency (approximately proportional to the square of the frequency). The second region is characterized by the presence of a number of absorption maxima, at which the body seems to draw the field into itself and absorb more energy than falls on its cross section. This leads to the formation of so-called “hot spots”. For humans, the conditions for the occurrence of local absorption maxima in the head occur at frequencies of 750...2500 MHz, and the maximum, due to resonance with the overall size of the body, lies in the frequency range 50...300 MHz.

When the human body is exposed to EMR with a frequency of more than 10 GHz, almost all the energy is absorbed in the surface layers of biological structures.

The energy of the field that penetrates the body is repeatedly reflected and refracted in the multilayer structure of the body with different thicknesses of tissue layers. As a result, EMF energy is absorbed differently, which explains the different effects on different tissues.

Thermal energy generated in human tissues increases the overall heat generation of the body. Excess heat is removed to a certain limit by increasing the load on the thermoregulation mechanism. When the EMR intensity is more than 10 mW/cm 2, called the thermal threshold, the body cannot cope with the removal of the generated heat, and the body temperature rises.

The most sensitive to radiation are human organs and tissues that have weak thermoregulation (brain, eyes, kidneys, etc.). Overheating of tissues and organs leads to their diseases, and an increase in body temperature of 1°C or higher can lead to irreversible changes.

When exposed to high-frequency EMFs, and especially microwaves, a living organism also has a non-thermal effect, which is the result of a number of microprocesses occurring under the influence of the resonant effects of the interaction of external electromagnetic fields with the internal fields of the body.

Exposure to EMR leads to various morphological and functional changes in the human body. With short-term exposure to low-intensity EMR, these changes are, as a rule, reversible, but with high irradiation intensities or systematic irradiation with low intensities that exceed the maximum limit, they are irreversible.

The negative impact of EMF on humans is expressed in the form of inhibition of reflexes, changes in the bioelectric activity of the brain, memory impairment, the development of chronic depression syndrome, lowering blood pressure, slowing heart contractions, changes in blood composition towards an increase in leukocytes and a decrease in red blood cells, disorders in the liver and spleen, turbidity lens of the eye, hair loss, brittle nails. The immune and reproductive systems are also sensitive to EMF.

Recently, a number of studies have been published on the possibility of developing autoimmunity, which is a serious pathology of the immune system, under the influence of EMF. Autoimmunity is based on the fact that the body produces antibodies directed against its own tissues, cells and their components, which have a damaging effect.

There is also evidence of a connection between EMR and cancer incidence, and this applies to both microwave and ultra-long ranges. For example, a higher incidence of cancer has been established among military personnel servicing radars. It is believed that EMPs are also one of the causes of leukemia in children.

Subjective criteria for the negative impact of EMF are headaches, increased fatigue, irritability, sleep disturbances, shortness of breath, blurred vision, increased body temperature.