The symptoms of headache when looking at cell phones are caused by the following reasons: 1. Eye muscle fatigue is the main cause of headache, this is because cell phones have radiation effects on the human body, and long time looking at cell phones can cause visual fatigue, excessive use of the eyes cause the onset of headache; 2. Vascular neurological headache, such as neurasthenia, migraine, etc., when looking at cell phones, the spirit is too focused, easy to cause a high degree of mental tension, inducing The recurrence of migraine, neurasthenia and other diseases can also cause eye discomfort and other symptoms; 3, excessive use of the brain when playing cell phones, if there is usually hypertension, cerebrovascular spasm and other diseases, easy to cause temporary cerebral artery blood supply symptoms, dizziness, headache and other discomfort. Long time playing cell phone can also aggravate myopia, causing retinopathy, usually appropriate to play cell phone, the time should not be too long to protect vision.