Beibei Jia patent

A good back is pulled abruptly, and it will bounce back after it is removed. To put it bluntly, it is a temporary solution, not a permanent cure, and it has no practical effect. A reminder or heel shoes is appropriate, or dance practice, especially when a ballet dancer is standing, let the center of gravity move back to the heel and do basic experiments. You will know, barefoot, the forefoot steps on a book two centimeters thick, and the foot follows the ground, so the center of gravity will move backwards, because the spine is behind, and the center of gravity is behind the spine.