After the pillow is absolutely no pillow, the reasons are mainly the following aspects: 1, the appearance of the pillow is often due to the pillow is not suitable, resulting in the cervical spine parts of the muscles, such as the sternocleidomastoid muscle, oblique angle muscle and cervical spine muscles, ligaments, showing excessive tension, fatigue, and inflammatory edema, so there will be local pain and unfavorable activity. If you do not use a pillow, it will lead to a more pronounced degree of local fatigue, which will lead to further aggravation of the symptoms of pain and unfavorable activity. 2, the posterior cervical spine location if there is pain, in the process of pillow can play a good warming effect, which helps to relax muscle tissue, but also to accelerate blood circulation, to promote the metabolism and absorption of local metabolites, to help relieve the symptoms related to the pillow. 3, in the process of The process of pillow also pay attention to warmth, try to wear high-collared clothes, to avoid the situation of cold. In addition, the pillow should not be too high or too low, otherwise it may lead to muscle fatigue in the cervical spine area again.