Detailed explanation of the power point of the hand when writing. First, make sure the writing posture is correct. Calluses in this place may be caused by improper holding of the pen.
Under normal circumstances, the wrist and body are in a relatively relaxed state when writing. If the wrist is forced to write, the body will basically become tense and the whole body must be relaxed. You can breathe through your mouth while writing, so it's less likely to hold your breath and your body can relax more easily.
