What are the hazards of going to Internet cafes? 、

In fact, the computer room is very harmful, and it is not easy to work in an Internet cafe for a long time. The computer room consists of many computers, which is a huge magnetic field in itself. People grow in it, including skin aging, eye radiation damage and air pollution. Pure advice, if you have another job, you can stay away from the computer room and be sure to quit your current job. This is some information I found on the Internet for you. The harm of computer radiation is often ignored by people. According to the international MPR radiation safety regulations, the radiation exposure within 50cm distance must be less than or equal to 25 V/m.. But do you know how much radiation the computer has? Computer radiation: 1, keyboard 1000V/m2, mouse 450V/m3, screen 2 18V/m4, host 170V/m5, notebook 2500V/m In addition, Radiation electromagnetic wave has eight hazards to human body: 1, promoting cell canceration 2, hormone abnormality 3, severe loss of calcium ion 4, causing dementia 5, abnormal pregnancy 6, hypertensive heart disease 7, electromagnetic wave. You should pay attention to the four hazards of computer radiation as follows:) 1, computer radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, and in severe cases, it will also induce cancer and accelerate human body. ` 2. The human reproductive system is mainly affected by the decline of male sperm quality, spontaneous abortion of pregnant women and fetal malformation. 2.N 3。 The cardiovascular system affecting people is characterized by palpitation, insomnia, menstrual disorder, bradycardia, decreased cardiac output, irregular sinus heart rate, leukopenia and decreased immune function of some women. 5S 4。 It has a bad influence on people's visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, too high electromagnetic radiation pollution will also affect the visual system. Mainly manifested as decreased vision, causing cataracts and so on. Zc= The latest national supervision and spot check results of computer product quality announced by the General Administration of Quality Supervision, Inspection and Quarantine yesterday show that electromagnetic radiation in computers can not be ignored. The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) randomly selected computer products from Beijing, Shanghai, Tianjin, Chongqing, Zhejiang, Hubei and other four provinces and cities, and the sampling pass rate was 72%. It is understood that the results of this spot check show that the computing speed, multimedia functions and software and hardware support of computer products in the domestic market have been greatly improved, but the product quality level of some enterprises is not stable enough. In this spot check, the computer products of Stone, Hewlett-Packard, Muze and other well-known enterprises were also identified as unqualified products. It is understood that the main quality problems found in this national supervision and spot check of computer product quality are that the radiation disturbance and conduction disturbance indexes in electromagnetic compatibility exceed the standard. Radiation disturbance is a kind of electromagnetic interference emitted into space when the computer is working, which will affect the normal work of other electrical appliances, especially high-sensitivity electrical appliances. Conducted interference will affect the normal work of other electrical appliances in the same power grid, such as motherboard, graphics card, switching power supply, display, keyboard, mouse and so on. , constitute the whole system. If the choice is not good, it will cause too much radiation interference. During the spot check, it was found that some enterprises didn't understand the standards enough, and they didn't strictly control the procurement and assembly quality of production line parts, and lacked the necessary testing means, which led to unqualified products. The seven companies, trademarks and models found in this spot check are: Beijing Sitong Computer Technology Co., Ltd., Sitong, Zhenjing JS100; ; Chongqing Xinbo Information Technology Development Co., Ltd., Xinbo, Free Village11kloc-0/; Nanning Shengli Technology Co., Ltd., Victory, Leap Ⅰ; Shanghai Taibo Computer Technology Co., Ltd., Taibo, BT-SMC-I 3298; Wuhan Juxing Computer Co., Ltd., Shennaotong, JXSD530L；; Beijing Heyuan Muze Technology Development Co., Ltd., Muze, E Fashion 510d; ; Shanghai Hewlett-Packard Co., Ltd., Hewlett-Packard, P728 1—L2325. Uncovering the X-files of computer radiation As the saying goes, gold is not enough. As a modern high-tech product and electrical equipment, computer brings more convenience, efficiency and joy to people's lives, but there are also some unfavorable factors that are harmful to human health. Judging from the types of radiation, 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". 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.). ). LCD uses the physical characteristics of liquid crystal,