Looking at the screen for a long time appeared headache, nausea, there are three main reasons: 1, the screen has radiation, radiation to the human body, if a long time in front of the screen, will receive a lot of radiation. 2, a long time to look at the screen will appear the phenomenon of visual fatigue, but also headache, nausea symptoms. 3, look at the screen for too long, resulting in excessive tension in the neck muscles, the emergence of cervicogenic Headache, it is recommended that patients can do neck massage for treatment. In ordinary life, it is not recommended to look at the screen for a long time, it will cause damage to vision, cause cervical spondylosis, and also affect the health of the body.