Relevant research shows that mobile phones are more harmful than computers. Because the screen of a mobile phone is small, the mobile phone is more devoted to attention, and the eyes are not clear, so it hurts the eyes. When using a computer, people's limbs can still move, but "mobile phone control "Often there is little activity, which is more detrimental to physical and mental health. If the following are true, the above conclusions can be weakened most:. ['During the use of the computer, the display screen will emit electromagnetic and ionizing radiation.', "The computer background light is more likely to cause users' vision loss and headaches than mobile phones.", 'Scientific research shows that using cell phones has nothing to do with the incidence of brain tumors and cancer.', 'People who use computers for a long time are prone to "computer diseases" such as mouse hands and cervical spondylosis.']