All human pain signals are transmitted by nerves, if there are no nerves there will be no pain, and only if there is an abnormality in the nerves and there is a problem in the transmission of signals will there be pain. The human spine is like a candy cane, with individual vertebrae connected by fibers and ligaments, except that in the middle of the spine is the spinal cord, not a bamboo stick. The human nerves emanate from the spinal cord, pass between the two vertebrae, and then accompany the blood vessels and muscles all the way to the human skin and other places. If something goes wrong with these nerves or if they are stimulated in an abnormal way, pain will occur. Most of the pain in the shoulder is due to problems with the nerves in the neck, and most of the problems occur where the nerves pass out from between the vertebrae. The doctor asked Zhang to do an MRI to see the situation of the nerves in the neck, to see if they are being squeezed or other harmful stimuli, and then to give different treatments according to the stimuli received. Learning to use a computer was once a dream come true for many people, but long-term computer exposure is what causes many young people to suffer from cervical spondylosis. The elderly suffer from cervical spondylosis is a reflection of the aging process, while young people suffer from cervical spondylosis “culprit” is mostly their own bad habits, the main is to maintain the wrong posture for a long time, coupled with the lack of appropriate exercise. Long-term low or twisted neck reading, or long-term stare at the display screen, so that the neck in a posture, will cause an imbalance of pressure between the two vertebrae, or excessive stretching of the neck muscles inflammation. These can cause local nerve irritation, causing pain and other symptoms in the corresponding area. Our ancestors had a saying “sit like a bell, stand like a pine”, which teaches us how to sit and stand, and this saying is very reasonable. Because if you do “sit like a bell, stand like a pine”, your spine will be in a balanced position, so as not to stimulate or compress the nerves, and will not appear corresponding diseases. Another point is to pay attention to rest, work long hours don’t forget to stand up and move, stretch your waist, move your cervical spine, give yourself a chance to relax, I believe it will help your health.