Osteoblasts are cells that can transform into bone tissue, while osteoclasts are cells that can destroy bone tissue. When a bone is damaged, or even fractured, this is when the osteoblasts begin to function. Over time, they gradually become harder and harder from soft and eventually calcify, forming new bone that can cover the injury or reattach the fracture. Osteoclasts are affected by many factors, such as age, health condition, specific diseases or environment, and will more or less accumulate on the surface of the bone, and when they accumulate to a certain number, they will decalcify and dissolve the local bone, and the dissolved bone is finally absorbed by the body. Osteoporosis, as we know it, is a disease caused by the rate of bone production, which is slower than the rate of destruction of bone by osteoclasts, and this can accelerate the rate of bone regeneration and slow down the rate of bone destruction, so that osteoporosis can be treated.