First, it has a direct impact on health: computer monitors are accompanied by radiation and electromagnetic waves. Long-term use will hurt people's eyes and induce some eye diseases, such as

Glaucoma and so on. Pressing keys for a long time will be bad for fingers and upper limbs; When operating the computer, the body shape and whole body rarely change, and the operation is high-speed, single and repetitive.

Persistent forced posture can easily lead to diseases of musculoskeletal system. The main parts involved in computer operation are waist, neck, shoulders, elbows and wrists.

Wait a minute.

The second is the harm of computer microwave to the body: the low-energy X-rays and low-frequency electromagnetic radiation of computers are easy to cause the disorder of people's central nervous system. An English article

The study of electromagnetic wave in office confirmed that the low-frequency radiation and magnetic field emitted by computer screen can cause 7 19 kinds of diseases, including itchy eyes, back pain in neck and transient absence.

Remember, grumpy and depressed. For women, it is easy to cause abnormal reproductive function and embryonic development, dysmenorrhea, prolonged menstruation and other symptoms. A few women also

Once premature delivery or abortion occurs, pregnant women who use computers for more than 20 hours a week will increase the incidence of abortion by more than 80%, and at the same time, it will also lead to fetal malformation.

The third is to increase mental and psychological stress: in the process of operating the computer, the attention is highly concentrated, and the eyes and fingers move quickly and frequently, which makes the physical and psychological overload.

Negative, leading to dreaminess, neurasthenia, head swelling, decreased immunity, and even inducing some mental diseases. This kind of person is easy.

Loss of self-confidence, inner tension, irritability, anxiety, and eventually lead to

Cause physical and mental fatigue.

Fourth, it leads to network syndrome: spending a lot of time and energy online for a long time without restraint will lead to various behaviors.

Normal, psychological disorder, personality disorder, partial dysfunction of sympathetic nerve function, and severe cases develop into network syndrome, which is typically manifested as: emotion.

Depression, loss of interest, sleep disorder, biological clock disorder, loss of appetite and weight loss, lack of energy, mental retardation and excitement, self-evaluation.

Price reduction, slow thinking, unwillingness to participate in social activities, little concern for others, drinking and taking drugs.

5. The gas emitted by computers is harmful to the respiratory system: computers, laser printers and other equipment will release ozone harmful to human health, which is not only toxic, but also

It causes some people to have difficulty breathing, and the situation is more serious for people with asthma and allergies. In addition, stay in ozone gas for a long time.

High concentrations can also lead to lung lesions.

How to prevent computer from harming human body?

Computers not only bring high-tech enjoyment to human beings, but also bring harm to operators.

People value it. People who have been engaged in computer operation for a long time should have a sense of self-care. Advance in daily work

To prevent computer diseases, we should pay attention to the following points:

◆ Suitable working environment. Indoor light should be moderate, neither too bright nor too dark, and avoid direct light.

Then illuminate the screen to avoid disturbing the light. The screen should not be too bright, and the color should be green. Take one's time

Rooms should be disinfected regularly to control pollution. At the same time, always open the doors and windows.

Or use a ventilator to change the indoor air.

◆ Correct sitting posture. Choose a chair with adjustable height,

The back is fully supported and the knees are bent about 90 degrees. Sit down.

Comfortable posture. The center position of the computer screen should be the same as that of the operator.

The chest is at the same level, the distance between the eyes and the screen.

It should be 40 cm ~ 50 cm, and don't lean on the table.

Get too close and keep your elbows bent naturally. During the operation

Always close your eyes and have a rest to adjust your eye fatigue.

◆ Don't hit the keyboard too hard, and try to relax your muscles. Suffering from wrist disease or tenosynovitis.

People should often move their wrists and finger joints, and try not to support their wrists on the edge of the table to avoid

Wrist compression. Patients with scapulohumeral periarthritis should exercise their shoulder joints frequently to avoid long-term inactivity and damage to muscles and tendons.

Adhesion occurs.

◆ Improve work efficiency and minimize time in front of the screen. Especially don't indulge in rhythm.

Fast and colorful video games. Foreign countries have clearly stipulated that computer operators should work continuously 1

, allowed to rest 10 ~ 15 minutes. Stand up and move your hands and feet during the break, or relax outdoors.

Take a break or do some radio exercises.

◆ Wash your face and hands frequently. There is a large amount of electrostatic charge on the surface of computer screen, which is easy to accumulate dust and inconvenient to operate.

Exposed places such as face and hands are easily polluted by these pollutants. If you don't pay attention to cleaning your face often.

There may be spots on the skin, which may cause pigmentation in severe cases.

◆ Computer operators should eat more foods rich in vitamin A. Such as carrots, bean sprouts, red dates and animals.

Liver, lean meat, etc. To supplement the deficiency of vitamin A in the body. You can also drink more green tea because it contains

There are many kinds of phenols, which can resist some harmful substances produced by computers.