I believe many people have this habit, always shrugging unconsciously, which will lead to the firmness of trapezius muscle over time. Let me introduce you to Shrugging. Shrugging is called borrowing in fitness, but it is actually a muscle compensation behavior. There are two kinds of borrowing power, one is cooperative muscle compensation. Every action we do, there will be an active muscle active force, and the auxiliary muscle is called synergetic muscle. When our active muscles become weak because of bad habits, then the synergetic muscles will be forced to open.
For example, if you do a wide squat to practice your hips, it is obvious that you are practicing your hips. I don't feel anything after practicing my hips, and my legs hurt like hell. This is your thigh to compensate your hip. The other is that unrelated muscles are compensated. For example, when we do high pull-down in back training, when your latissimus dorsi muscle is too weak, then you will unconsciously shrug your shoulders and pull the rod against the trapezius muscle, but this action actually doesn't need trapezius muscle at all. This is a typical borrowing phenomenon. In addition, shrugging is also a kind of body language. The hunched shoulders convey a helpless message: "I don't know what to say" or "I know nothing".
Shrugging is also defined as a signal of helplessness, or a signal of choosing to retreat in the face of difficulties, which is a humorous expression. Darwin explained this posture with the principle of unconscious contrast. He said that an angry person, ready to fight for honor, will hold his head high and clench his fist. On the contrary, when a person feels powerless or uncertain, he will take the opposite action. He will bulge his shoulders, tilt his head, palm up and spread his hands. Interestingly, raising the shoulders can obviously reduce the relative position of the head, which naturally reminds people of the picture of the tortoise retracting its head into its shell; Therefore, shrugging and cowering mean the same thing, that is, "for me, this is really insoluble." Helpless, or indifferent. Otherwise it will disappear.