What are the common pathogenic factors of cervical spondylosis? (1) Degenerative changes: degenerative changes of the cervical discs with age and the resulting degeneration of the entire cervical spine and other parts of the cervical spine, such as small joint ligaments, are the main cause of cervical spondylosis. (2) Chronic strain injury: Chronic strain injury refers to the maximum activity beyond the normal physiological range of activity. This strain is easily overlooked, but it is the main cause of cervical spine joint degeneration. It includes poor sleeping position, improper posture of work and inappropriate physical exercise. (3) Head trauma: such as traffic accidents, accidents in work and life, sports injuries, inappropriate traction and so on can cause different degrees of injury or aggravate cervical degeneration. (4) Inflammation of the pharynx: it is easy to trigger the appearance of cervical spondylosis symptoms or aggravate the symptoms. Since the inflammatory changes there can directly stimulate the adjacent muscles and ligaments, or make the inflammation spread locally through the rich lymphatic system, so as to cause hypotonia, ligament relaxation and imbalance inside and outside the vertebral joint there, which destroys the stability of the intervertebral body. (5) Developmental spinal stenosis and congenital deformities of the cervical spine, such as congenital vertebral fusion, hypoplasia of the first cervical vertebra or with skull base depression and sphenoid deformity, can also cause cervical spondylosis. Cervical spondylosis daily activities guidance (1) pillow and sleep: the center of the pillow should be slightly concave, the height of 12 ~ 16cm neck should be pillowed on the pillow, can not be suspended, so that the head to keep slightly back. Those who are accustomed to side lying position, should make the pillow with the shoulder height. When sleeping, do not lie down and read, and do not put your hands on your head for a long time. (2) Work posture: Sitting work should try to avoid hunching, head down, do not lie on the table to write, do not overly low when reading, try to keep the book and eyes parallel. The time spent reading, writing, using computer, driving, etc. should not be too long. Generally work 50~60 minutes to do 1-2 minutes head and neck activities or change posture. (3) Avoid over-extension and over-flexion of the neck: Patients with spinal cord cervical spondylosis should avoid over-extension and over-flexion of the neck when washing the face, brushing teeth, drinking water and writing. (4) Pay attention to the warmth of the neck and shoulders to avoid cold neck, especially in summer, avoid blowing the neck directly against the air conditioner when sweating. Normally, you can do appropriate functional exercises for the neck, such as rice exercises, to relieve the fatigue of the neck muscles.