The harm of computer radiation, computer is the product of modern high technology, which brings great convenience to people's lives, but because of its strong electromagnetic radiation, it will do harm to human reproductive system, nervous system and immune system. Let's take a closer look at the dangers of computer radiation.
Harm of computer radiation 1 The hidden dangers of computers to human health mainly include electromagnetic radiation (various electromagnetic rays, electromagnetic waves, etc. ), sound (noise), light (ultraviolet, infrared radiation and visible light, etc. ) and other radiation "pollution" generated and emitted by computers during their work.
From the perspective of radiation sources, it includes CRT display radiation sources, chassis radiation sources and peripheral equipment radiation sources such as speakers, printers and photocopiers. Among them, the imaging principle of CRT (cathode ray tube) display determines that it is difficult to completely eliminate harmful radiation during its use.
Because when it is working, its internal high-frequency electron gun, deflection coil, high-voltage bag and peripheral circuits will produce a variety of rays and electromagnetic waves, such as ionizing radiation (low-energy X-rays), non-ionizing radiation (low-frequency and high-frequency radiation), electrostatic field and optical radiation (including ultraviolet radiation, infrared radiation and visible light, etc.). ).
Liquid crystal display, on the other hand, uses the physical characteristics of liquid crystal, and its working principle is completely different from CRT display. It is a "healthy" display with no radiation (negligible) and environmental protection. Various components in the chassis,
Includes a CPU with high frequency and high power consumption, various boards with a main chip with a large number of transistors integrated inside, an optical drive with a high-speed DC servo motor, a floppy drive and a hard disk, several cooling fans and transformers inside the power supply, etc. When working, it will emit radiation and noise interference such as low-frequency electromagnetic waves.
In addition, external speakers, photocopiers and other peripheral equipment radiation sources are also a "source" that cannot be ignored. Some experts' test results show that the computer case and LCD screen are specially shielded from radiation, and the front radiation is not very high. The equipment with high radiation is just the unshielded capacitive element equipment such as keyboard and mouse. Turn off and cut off the power supply of the computer, the components in the computer will not work, and of course, there will be no radiation.
Judging from 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 will directly harm human reproductive system, nervous system and immune system, which is the main inducement of cardiovascular disease, diabetes and cancer mutation, and also the inducement of abortion, infertility and teratogenesis of pregnant women.
It can directly affect the development of minors' body tissues and bones, cause the decline of vision and memory and the decline of liver hematopoietic function, and even lead to retinal detachment in severe cases. In addition, electromagnetic radiation also brings hidden dangers to information security.
It can be received and decoded by special signal receiving equipment, resulting in information leakage and unnecessary losses. Excessive electromagnetic radiation will also interfere with other electronic devices around, affecting their normal work, resulting in electromagnetic compatibility (EMC) problems.
Therefore, electromagnetic radiation has been listed by the World Health Organization as the fourth largest environmental pollution source after water, atmosphere and noise, and has become an invisible "killer" that harms human health. Therefore, electromagnetic radiation protection is imperative.
Computer radiation electromagnetic radiation usually produces biological effects on the body through thermal effect, non-thermal effect and stimulation. The thermal effect is well known. The human body is a dielectric, which is polarized repeatedly under the action of high electric field, and the collision and friction between molecules produce violent motion, which converts electric energy into heat energy.
There is also a dielectric solution (such as body fluid) in the body, which generates a conductive current under the action of an electric field, forming a closed loop of different degrees, generating local induced heat flow, leading to fever. The thermal effect of high frequency radiation, especially microwave radiation, is more obvious.
Microwave oven, microwave therapeutic apparatus, etc. Are based on the thermal effect principle of radiant energy. Excessive heating and long-term exposure to radiation will do harm to human body, and the thermal effect of low-frequency electromagnetic radiation is not obvious. Non-thermal effects affect brain cells, weaken the activity ability of cerebral cortex cells and inhibit the conditioned reflex that has been formed. Long-term exposure may lead to nervous system dysfunction.
Experiments show that electromagnetic fields can shorten the average sleep time of normal people by 20 minutes.
A study by Booth, a professor of cardiovascular medicine in Frejborg, USA, shows that mobile phone radiation increases the diastolic blood pressure of subjects by 10-20mmhg. Stanford University and North Carolina Comprehensive Experimental Systems Company studied the effects of radiation on four kinds of mobile phones and many kinds of animal cells. The results show that radiation can damage the chromosomes of animals.
The influence of DNA genetic factors will lead to cell canceration. The cerebral cortex of chickens and cats will be irradiated by low-frequency modulated ultra-high frequency and ultra-high frequency electromagnetic waves. Calcium ion is an indispensable substance for information transmission, immune system work and cell reproduction in organisms.
The experiment also found that low-frequency electromagnetic waves can change the secretion of melatonin in animal pineal gland, and melatonin can inhibit tumor cells. When melatonin is reduced, it can change tissue molecules and lead to degenerative diseases.
The harm of computer radiation 2 There are many dangers of computer radiation, which will seriously affect the disorder of human endocrine system. At this time, it will still cause irregular skin metabolism. It is said that computers are magnetic, which will seriously accumulate some dust and dirty air. These conditions will seriously affect the quality of the skin itself and the aging degree of the skin.
The choice of computer radiation eliminator is also very important. You should first understand the advantages of all the products in this category. Nowadays, computer radiation eliminators on the market can be divided into two categories: one is products that convert power supply; The other is a USB eliminator connected to the host motherboard.
For busy people, the easiest way to resist computer radiation is to drink 2-3 cups of green tea and eat an orange every morning. Tea is rich in provitamin A, which can be quickly converted into vitamin A after being absorbed by human body.
Vitamin A can not only synthesize rhodopsin, but also make eyes see things more clearly in dark light. Therefore, green tea can not only eliminate the harm of computer radiation, but also protect and improve vision. If you are not used to drinking green tea, chrysanthemum tea can also play a role in resisting computer radiation and regulating body functions. Spirulina and sea buckthorn oil also have anti-radiation effects.
The harm of computer radiation is actually more. In our life, if we want to avoid the harm of computer radiation, we can try to put some green plants next to the computer on our desk, which can quickly relieve our mood. It can also avoid computer radiation.