The cervical spine has a forward physiological bend, and the best way to match the physiological bend is to do more head-up movements. So raising your head more is very helpful to the cervical spine, especially at this stage of life, often head down to play with cell phones, long hours of work, etc. head down especially in the case, do more head up action, can reverse the long time cervical strain, strain action, effective prevention of the cervical spine physiological curvature change. From the basis of cervical spine lesions, there is generally a straightening of the physiological curvature, or even a serious reverse arch of the physiological curvature. On top of this foundation, degeneration of the cervical spine, osteophytes or herniated shoulder discs are more likely to occur, resulting in cervical discomfort, pain, restricted movement, numbness of the upper limbs, and even weakness of the extremities.