How to write hard-pen calligraphy to prevent myopia

1. When writing hard-pen calligraphy to prevent myopia, as long as you don't bend over, sit upright and your eyes are not tired.

2. Learn to write and sit up straight.

3, thumb brother, second thumb brother, middle finger is quite pen.

4, three centimeters away from the pen tip, the pen body gently tilted.

5, the first three fingers, put the pen away.

6. Keep your last two fingers steady.

7. Keep your shoulders flat and relax.

8. Correct pen holding posture to prevent myopia