Generally speaking, those who just blink, the appearance is not red or swollen, they feel no pain, and they are not accompanied by dyskinesia, all of which belong to physiological blink, and they don't need special treatment or worry too much about it. During joint movement, there will always be friction between articular surfaces, between cartilage pads and articular surfaces, and between tendons and joint capsules. , and will make a sound. In most people, this sound is not obvious, but it sounds clearer in some people. Especially for sedentary people, there is less lubricating fluid between joints, which increases the loss of joint friction and makes it easier to hear snapping. When accompanied by pain or limited joint activity, you need to go to the hospital to determine whether the joint is dislocated or damaged. Teachers, editors, secretaries, computer loggers and other people who work at their desks all the year round often complain about the "snapping" of cervical vertebrae. The appearance of snapshot only reminds people not to keep the same posture for too long and to exercise more. 15~30 minutes, it is best to get up and move a little.