What is meant by cervical spondylosis? The current international consensus is that cervical spondylosis refers to degenerative degeneration of the intervertebral disc and its secondary degenerative degeneration of the intervertebral joints resulting in damage to the spinal cord, nerves and blood vessels and the corresponding symptoms and signs. The common causes of cervical spondylosis are as follows: 1) degenerative disc degeneration (the most common); 2) acute and chronic injury; 3) congenital spinal stenosis of the cervical spine. Cervical spondylosis is often divided into the following four basic types: 1, neurogenic cervical spondylosis: about 50%-60% of cervical spondylosis, the clinical start is mostly neck and shoulder pain, aggravated within a short period of time, and radiation to the upper limbs, the upper limbs can appear skin numbness, allergies and other sensory abnormalities, at the same time there can be upper limb muscle strength decline, finger movements are not flexible, when the head or upper limb posture is not appropriate or suddenly hit the affected limb can occur severe lightning-like sharp pain The patient’s head likes to deviate to the affected side, and the shoulder is shrugged upward, and some patients with long duration of disease may have muscle atrophy, and the affected limb is limited to different degrees in lifting, abduction and back extension. Spinal cord type cervical spondylosis: accounting for about 10%-15% of cervical spondylosis, spinal cord compression often occurs in the lower cervical segment, the neck pain of these patients is not obvious, but the first symptoms are weakness of the limbs and instability in walking and holding things. With the aggravation of the disease, upper motor neurogenic paralysis from the bottom up can occur. 3.Sympathetic cervical spondylosis: These patients may have sympathetic excitation symptoms such as headache or migraine, dizziness, loss of vision, eye pain, cardiac arrhythmia and elevated blood pressure, or sympathetic inhibition symptoms such as bradycardia, decreased blood pressure and gastrointestinal distension. 4.Vertebral artery type cervical spondylosis: clinical manifestations include dizziness, headache, visual disturbance, sudden collapse, some patients have different degrees of motor and sensory impairment and mental symptoms. With the above basic knowledge, it is not difficult to analyze a series of symptoms such as stiffness and pain in the back of the neck, shoulder, upper limb weakness, dizziness, and elevated blood pressure, etc. If hypertension is excluded, the possibility of cervical spondylosis should be considered. The symptoms of cervical spondylosis, such as the symptoms of neurogenic cervical spondylosis and sympathetic cervical spondylosis. Daily exercise and health care of the cervical spine: 1, pay attention to the correct sleeping position: generally supine, lateral lying is appropriate. Prone position, the head and neck in a position of extreme twisting to one side, the neck is tense, easy to cause strain and degenerative changes in the neck muscles, ligament joints, etc., generally should not be used. 2, correct bad posture: to prevent persistent single posture, to avoid muscle fatigue is a major principle. Sitting posture, the line of gravity in the back of the sciatic tuberosity, when the back must have leaning, sitting posture in front, the body parts naturally relaxed, the body stem thoracic section forward about 15 degrees, the head and then from the torso forward 15 degrees, the waist lightly against the back of the chair, forearms on the table, this position can meet the needs of ambulatory work, but also to reduce fatigue. 3, pay attention to change the sitting posture: sitting should not be too long, more than 1 hour to do some activities. Available hands press, push, knead, point neck soft tissue, release muscle tension or muscle spasm, can focus on loosening the posterior neck muscle group. The distance between the eyes and the desktop is about 30 centimeters when voluntarily, which can reduce fatigue. 4, functional exercise: such as freestyle swimming is a very good health care exercise, its coordinated movement of the skeletal muscle system has a good effect, can delay the degeneration of bone, increase joint flexibility and flexibility, enhance muscle contraction, reduce the onset of cervical spondylosis.