Benefits: This action can promote the blood circulation of lower limbs, maintain and enhance the vitality of muscles and joints, promote the contraction of muscles when shaking, and promote the blood return of lower limbs, which is good for preventing limb thrombosis and varicose veins. Therefore, shaking your legs is not a disease, but a personal habit.

Disadvantages: obviously ill-bred, personal manners are not good-looking. If you sit with others and sit on the bench continuously, if your legs are always shaking, it will also affect others and cause their disgust. Therefore, this habit is very bad. I suggest you consciously get rid of it.

Extended data:

Precautions:

Although shaking your legs has understandable psychological reasons, it is slightly indecent. First, you can choose a place with a strong sense of security, or you can choose some places that are not concerned, so as to reduce the variability of the surrounding environment, thus reducing anxiety and tension. Secondly, you can promote blood circulation by walking back and forth instead of sitting for a long time.

Finally, if you really can't change it, you can find some alternative behaviors, such as tapping your fingers and other hidden behaviors, which can alleviate the tension and be difficult to find.

People's network-shaking your legs may be a kind of self-protection.