Insufficient cerebral blood supply in young people first pay attention to cardiogenic arrhythmias, then a long-term hypotension or low blood volume, such as sweating more, drinking less, this low blood volume, blood viscosity, and eventually lead to reduced blood supply or oxygen supply to the brain.1, long-term poor blood supply, the first performance sleepy, drowsy, after fatigue. Slowly the body stress capacity decreases, may not sleep well, the immune system function decreases, eventually leading to the occurrence of some diseases in the body, and even affects normal life. The young people feel dizzy, dizzy, must pay attention to do a heart check. 2, the rest is the cervical spine, now a long time to work, play computer, look at the cell phone, so that the cervical spine bone quality has changed, so that the normal curvature of the cervical spine straightened, or even reverse arch. 3, then there is a cervical muscle spasm compression of blood vessels, may also lead to dizziness, insufficient blood supply to the brain, which needs to change the usual bad work and rest environment, try to look at the phone, or do not lean on the head of the bed half lying. Or do not lean on the head of the bed half lying half lying watching TV, reading books, these may lead to the early occurrence of cervical spondylosis.