Electromagnetic radiation is generated by current. As long as there is current, there is radiation, but the amount of radiation varies with the current. Conductive metal has radiation protection effect, so the radiation of electrical appliances with metal casings is not very large. Usually, only the computer monitor (TV set) has serious radiation. If it's just a monitor, you can install a radiation-proof computer screen or change the LCD monitor.
Long-term and excessive electromagnetic radiation will directly harm the reproductive system, nervous system and immune system of human body, which is the main inducement of cardiovascular disease, diabetes and cancer mutation, and the inducement of abortion, infertility and teratoma in pregnant women.
Extended data;
The influence of radiation on human body begins with cells. It will accelerate the decline of cells, inhibit the formation of new cells, or cause cell malformation, or cause changes in biochemical reactions in the human body. When the radiation dose is low, the human body itself has the ability to repair radiation damage, and can repair the above reactions without showing harmful effects or symptoms.
However, if the dose is too high, which exceeds the repair ability of various organs or tissues of the human body, it will cause local or systemic lesions. The following table shows the biological effects of radiation recognized internationally at present. It can be seen that the human body can tolerate the concentrated irradiation of 25 rem without being damaged. Of course, everyone's resistance and physique are different.
Reference source; Baidu encyclopedia-electric radiation