When sleeping, if the pillow is too high, it will make the neck pressure is too high; too high pillow will cause the cervical vertebrae to tilt forward, a part of the cervical vertebrae is too much pressure, destroy the normal physiological forward curve angle of the cervical vertebrae, compression of the cervical nerve and vertebral artery, causing neck pain, lack of oxygen to the head, headache, dizziness, tinnitus and insomnia and other cases of brain neurasthenia, and prone to osteophytes. If the pillow is too low, the neck not only can not relax, but will destroy the normal curvature of the cervical spine. So the pillow is too high or too low, will have an impact on the cervical spine, resulting in a variety of neck symptoms. The main role of the pillow is to maintain the normal physiological curve of the human body, to ensure that the body does not deform the physiological curvature of the neck during sleep. The height of each person pillow has different, to find a standard height for their own, in fact, it is very simple, the height of the fist of each person standing up, is the height of the pillow for their own, this height is just in line with the physiological curvature of the body after leaving the bed. Now many people sit in front of the computer for a long time, to maintain a posture, it is easy to form neck problems, such as cervical spine osteophytes, etc. It is recommended that such people sleep with particular attention to the selection of a suitable pillow, the head placed in the center of the pillow, choose a harder bed. Work to avoid long-term in a certain posture, often adjust, can shrug, arm and elbow movement, can do cervical traction therapy according to medical advice (if the symptoms worsen should stop traction). Choose breathable, can always adjust the pillow height, to the physiological position is better, the general height to 8cm ~ 15cm is appropriate. The best pillow filler than buckwheat bark, buckwheat bark pillow not only has excellent shaping and support for the head, and its temperature and cool appropriate, suitable for both young and old.