Finger trivia:Why rub your fingers and make a sound at the joints?

In fact, there are some small bubbles in the joints. The fingers will make these bubbles squeeze and…

In fact, there are some small bubbles in the joints. The fingers will make these bubbles squeeze and break, and they will make us hear the buzz.

Finger trivia:Why rub your fingers and make a sound at the joints?
Finger trivia:Why rub your fingers and make a sound at the joints?

However, the doctor advises not to do such an action, so as not to accidentally use excessive force to accidentally injure the soft tissue near the joint.

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