What harm does the computer do to people?

Computer is an epoch-making invention, which brings convenience to people's work, study and life, but also brings anxiety. People are more or less worried about the impact of long-term computer work on the body, such as whether computer radiation will cause harm to the human body. Young women and pregnant women are more afraid that it will affect fertility or be bad for the fetus. In fact, computers do form weak electromagnetic fields when they are working, but whether long-term contact will cause cancer or be harmful to human body is still inconclusive. Some scholars believe that this electromagnetic field may cause cancer. The electromagnetic field generated by a computer is scattered, and a computer operator will be influenced by other computers around him besides his own computer. A study in the United States pointed out that if a pregnant woman works in front of a computer for more than 20 hours a week, her chances of miscarriage in the first three months are twice as high as others. Therefore, pregnant women should avoid getting close to computers during pregnancy. In addition, the electromagnetic field of color computer is 3-4 times that of black-and-white computer. So, how much harm can computers do to the human body? The news media at home and abroad have reported many times that computer screens cause abortion, teratoma, facial rash, cataract and photosensitive epilepsy, but this conclusion cannot be confirmed by epidemiological statistical analysis, and the expert group of the World Health Organization also holds this opinion. At the same time, the monitoring results also show that the X-ray, ultraviolet ray, infrared ray, ultra-low frequency, electrostatic field and sound radiation generated by computer or TV screen are within the allowable range. But it is worth noting that computer screens cause visual fatigue. The constantly changing and scrolling characters on the computer screen will irritate the eyes and do some harm to them. In addition, the imbalance of positive and negative ions in the indoor environment where computers are placed will also cause autonomic nervous disorder and depression of users. Experts point out that a reasonable diet helps to prevent computer operators from suffering from "computer disease". The main thing is to eat breakfast well, ensure adequate nutrition and calories, and maintain vigorous energy; Chinese food should be high in protein; Dinner is light, eat more foods with high cellulose content, and consciously choose foods that protect your eyes to prevent myopia or other eye diseases.