Children watching computers and cell phones for a long time will cause eye diseases, slow brain development, affecting physical health and other problems. 1. Cause eye diseases: long-term watching TV and cell phone will overuse eyes, eye axis growth, excessive elimination of farsightedness reserve, will cause myopia, hyperopia and other eye diseases. 2. Slow brain development: the brain is in a rapid development stage in childhood, and needs more external stimulation. If you watch videos for a long time, your brain nerves will not be stimulated accordingly, which will slow down your brain development. 3. Impact on physical health: TV and cell phones and other electronic products addicted to make children lack of exercise, the child’s immunity is relatively low, long-term, will affect the physical health. Children watching TV and cell phones for a long time can cause eye diseases, cause brain development to be delayed, and affect physical health. It is not recommended to let children watch electronic devices for a long time, and if myopia and other related problems have already appeared, please consult a doctor in time.