The main reasons for the stiffness and tightness of the neck are three: 1, due to the cervical spine area has cold, once cold will lead to muscle tissue becomes tense, will lead to the cervical spine position of hardness and tightness. 2, due to local strain, especially strain accompanied by cold, will lead to more local inflammatory metabolites, inflammation will produce stimulation of the surrounding muscle tissue, resulting in muscle tissue becomes tense, also The inflammation will stimulate the peripheral circulation, leading to a decrease in circulation and a further increase in the accumulation of metabolic products. The muscle tension and stiffness will be exacerbated by the re-emergence of muscle stimulation.3. As a result of degeneration and inflammatory hyperplasia in the cervical spine, the peripheral nerves, tissue structures and peripheral circulation around the area will be stimulated, all leading to significant stiffness and tightness. Therefore, it is necessary to keep the cervical spine relaxed and rested, avoid lowering the head and overexertion, and try to choose a more comfortable pillow to maintain the normal physiological curvature of the cervical spine. Pay attention to the warmth of the cervical spine area, you can use more warm water bags for hot compresses, can play a very good effect.