Nowadays, the incidence of cervical spondylosis is getting higher and higher, especially among white-collar workers and high school students, who spend too much time ambulating, reduce their activities and read books or computers in a bad posture. After a long time, changes in the cervical spine gradually begin to appear, and X-rays show straightening of the cervical curvature, uneven alignment of the spinous process, or calcification of the collateral ligament. Therefore, it is called poor posture. The clinical symptoms are stiff neck, shoulder pain, even dizziness, hand numbness, etc., which affect work and study. I suggest that we often do a set of McKenzie self-therapy movements, can prevent cervical spondylosis. Specific practices are as follows: straighten the neck, head backward to the maximum degree of translation, and then relax back to the natural position. Repeat 7-8 times as a group, do 8-10 groups a day. Adhere to a long time, there will be benefits.