Many people, especially computer people work or play computer after a long time will feel dizzy nausea and vomiting, which has three reasons: 1, visual fatigue: long-term or long time to stare at a place to see, due to extraocular muscle fatigue will lead to dizziness, nausea, vomiting symptoms occur, it is recommended that patients do not stare at an object for a long time has been looking, about half an hour later, the eyes to look away to relieve Eye muscle tension, improve the symptoms of visual fatigue; 2, cervical spondylosis: now long-term ambulatory work or long-term work staring at the computer, the cervical spine is prone to degenerative diseases, can appear cervical disc protrusion and cervical spine osteophytes, when the cervical spine osteophytes, may compress the vertebral artery vessels passing through it, the vertebral artery compression can lead to insufficient blood supply to the brain and symptoms of dizziness; 3. Exertion: after a long period of work or work intensity will feel the symptoms of headache, nausea, vomiting, so it is recommended that patients do not work too long on the computer, about half an hour to an hour of work, it is recommended that patients look far away or go out to relieve the symptoms of dizziness, nausea and vomiting.