There are more harms on the Internet! Thank you!

1. Eye diseases: According to the ophthalmology experts of the hospital, the patient's blindness is because the picture on the screen is jumping up and down, left and right, changing rapidly, and the person who plays is staring at the screen intently, making the eyes overtired, causing myopia in the light, and retinal detachment in the heavy, causing serious visual impairment and sudden blindness, that is, temporary or permanent blindness.

2. Cervical spondylosis.

3. Lumbar strain.

4. Muscle tension headache and vascular headache and other diseases, and in severe cases, intractable muscle tension headache will also be formed.

5. Frozen shoulder: stay on the grid overnight and lay off your shoulder. People who work at their desks for long periods of time or are immersed in computers are more likely to develop frozen shoulder, especially in summer.

When the temperature is high, if people work and live in an air-conditioned environment for a long time, the neck and shoulder are attacked by wind and cold, which will cause congestion and edema of the soft tissues of the shoulder, contracture of the tissues around the shoulder, and adhesions between the synovium and articular cartilage of the shoulder joint, resulting in limited movement of the shoulder joint and pain when moving.

6. Mental illness: Experts point out that excessive use of the Internet often leads to emotional disorders and social adjustment difficulties among adolescents. Psychologically, there will be inability to concentrate and last, memory loss, lack of interest in other activities, apathy, lack of sense of time, and depressed mood.

On the physical side, there will be inability to maintain a normal sleep cycle, insomnia, headaches, difficulty concentrating, indigestion, nausea and anorexia, and weight loss when you stop surfing the Internet. In terms of behavior, conduct disorders occur, producing aggressive behavior. i.e. internet addiction.

7. If you surf the Internet for a long time in an environment with poor ventilation and sanitation conditions or in an air-conditioned room, heat cold, gastrointestinal diseases, contact dermatitis, dizziness, swelling and headache are common symptoms.

The first is that it's not good for the eyes.

Then there is cervical spine fatigue.

Then there is the addiction that will be counted as a mental patient.

The disadvantage is that many students who cannot take care of themselves go to the bottomless abyss.

The advantage is that you can check a lot of information that you don't understand, and you can relax.

Pros: First, broaden your horizons.

The Internet is an encyclopedic world with extremely rich information, a large amount of information, fast information exchange, a strong degree of freedom, and the realization of global information sharing, middle school students can obtain their own needs at will on the Internet, browse the world on the Internet, understand the world, understand the world's latest news and information, scientific and technological trends, greatly broaden the horizons of middle school students, and bring great convenience and fun to study and life.

2. Strengthen foreign exchanges.

The network has created a virtual new world, in this new world, each member can transcend the constraints of time and space, it is very convenient to contact and communicate with acquaintances or unacquaintances with a smile, discuss topics of common interest, due to the "virtual" nature of network communication, avoid the friction and injury when people face the communication, so as to provide a new place for people to meet their emotional needs and obtain information. The Internet for middle school students can further expand the time and space of foreign exchanges, and realize the freedom of communication and friendship. At the same time, most of today's middle school students are only children, and they are more lonely at home, and psychologically speaking, they are the most eager to socialize with others.

Real-life interactions can be stressful for them, especially introverts, and the Internet gives them a new space for interaction and a relatively relaxed, egalitarian environment.

3. Promote the individualized development of middle school students.

The world is rich and colorful, and human development should also be rich and colorful. The Internet provides an environment for this infinite variety of development opportunities. Secondary school students can find their own development direction online, and they can also get resources and motivation for development.

The most effective learning is the use of the Internet to learn, research, and even innovate. There is a vast amount of knowledge available for learning on the Internet, which provides a very broad field for middle school students to carry out large-span associations and imaginations, and continuously delivers nourishment for creative thinking, and some computer games can strengthen the logical thinking ability of middle school students to a certain extent.

Fourth, expand the space for education for today's middle school students.