1, correct sitting posture: maintain a natural sitting position, hips and back to fully contact the chair, shoulders back, two shoulder line parallel to the edge of the table, the spine is straight, two feet on the ground. Adjust the height of the table and chair to the best state in proportion to their height, so that the eyes level, shoulders relaxed. Avoid excessive forward bending of the head and neck or excessive backward, to reduce the neck fatigue caused by prolonged sitting. 2, sleep posture: sleep not to sleep on top, the pillow can not be too high, too hard or too low. The center of the pillow should be slightly concave, the neck should be in full contact with the pillow and keep slightly backward, do not hang. Those who are accustomed to side lying position, should make the pillow with shoulder height. Do not lie down to read a book, do not blow cold wind on the head and neck. Pillow height of about 10 cm, or the same height as their own standing fist, to avoid falling pillow. 3, pay attention to warmth: the cold can make local vasoconstriction, blood flow rate is reduced, hindering the metabolism and blood circulation of the tissue. In winter, you should wear a scarf or wear a high-collared sweater to prevent the neck from being exposed to wind and cold. 4, avoid and reduce acute cervical spine injury, such as avoid lifting heavy objects, emergency brakes, etc.