Standing and practicing calligraphy will hurt your waist.

No. Think about it, if standing will hurt the lumbar spine, then people who work standing will not get sick? ! But who has ever heard of someone getting sick because of standing? On the contrary, writing standing up is beneficial to your physical and mental health, long-term persistence and longevity, because you should be active and fluent, your pen is full of soul, your muscles and meridians are smooth, and your mood will be happier.