About 1/3 of human time is spent with the pillow, in line with the physiological state of the cervical spine pillow will provide sufficient time for the rest and repair of the neck and shoulder muscles and structures. Research shows that when the pillow is too soft, too hard, too high or too low, it will lead to uncoordinated contraction of the neck and shoulder muscles, and as a result, the muscles that have been tense all day will not get rest, especially when the tension of the small joints of the cervical spine increases, the somatic nerve fibers and the dense sympathetic nerve fibers on the joint capsule are stimulated, which will produce the so-called “pillow” Symptoms, there are many people in the wake up or even sleep will appear numbness, pain, dizziness, nausea and other symptoms of the upper limbs. These are a good illustration of how important the reasonable application of pillows! In fact, the so-called “beer bottle”, “small soft pillow”, “sponge pillow”, “shaped pillow”, etc. do not meet the The physiological requirements of the cervical spine, especially when the user in a supine to lateral sleeping position, will lead to the cervical side of the small joint bulge, greatly increasing the tension of the small joint and its joint capsule, causing symptoms. Usually do not recommend pillows made of sponge fluffy soft pillow, generally can be filled with buckwheat hulls, etc., to facilitate the adjustment of the pillow height according to individual characteristics; and the existing pillow due to insufficient width, the user often can only put the head on the pillow regardless of supine or lateral lying, while most of the neck is suspended, which leads to excessive forward and lateral flexion of the cervical spine. The medical health care neck pillow scientifically increased the width of the pillow, supine, in accordance with the characteristics of the pillow can be shaped in accordance with the head and cervical spine all, including the upper edge of the back of the shoulder all pillow, and the use of “head thick shoulder thin” pillow method, which avoids the harm of the neck overhang.