The amount of computer radiation is relatively small, will not cause significant harm to the body, but long-term use of computers can cause damage to vision, cervical or lumbar spine. Computer radiation is mainly refers to electromagnetic radiation, electromagnetic radiation is usually thermal effects, non-thermal effects and stimulation of biological effects on the organism. However, scientific experiments have shown that today’s computer radiation is minimal and does not pose a negative impact on the human body. Long-term sitting in front of the computer or the computer screen is too bright easily appear eyes astringent or headache and other discomforts, and even transient blurring of vision, will cause vision damage to a certain extent. Long-term use of computers in the irregular sitting posture, long-term head down, hunchback prone to shoulder and neck muscle strain, triggering dizziness, pain, cervical spine stiffness and other discomforts, may also be accompanied by lumbar spine and other diseases. Computer harm to people generally does not lie in the radiation, but in the human vision and shoulder and neck, lumbar spine of the negative impact, it is recommended that users, especially office workers to avoid prolonged in front of the computer, every once in a while to get up and walk around, the appropriate distance to see the green plants and maintain a good sitting posture.