The cervical spine is afraid of cold is mainly due to two reasons: 1, because the cervical spine area itself exists some aseptic inflammatory lesions, such as in the usual regular low head ambulation, look at the phone, look at the computer, sitting position when the elbow joint is not supported, sleep at night when the pillow is too high, the physiological curvature is straightened, which will lead to cervical spine strain injury situation. The inflammatory metabolites will stimulate the surrounding blood vessels, leading to vasoconstriction, and when the arterial blood supply is reduced, the local area will not receive enough energy and electrolyte nutrient support, and the feeling of cold will appear. In addition, the slowing down of venous return will lead to the accumulation of inflammatory metabolites, which will again lead to vasoconstriction and a further decline in arterial blood supply, aggravating the feeling of coldness. 2, due to the lack of clothing coverage of the cervical spine, such as when the head is low, it is easy to get cold, and at night when sleeping, as the bedding often does not cover the cervical spine, it will also lead to coldness of the cervical spine, and over time, it will lead to coldness of the cervical spine. It will lead to the cervical vertebrae to appear cold situation.