Kaiso Japan

Bones undergo repeated metabolism just like hair and skin. When we are young, a balance　between cells that destroy old bone (osteoclasts) and cells that create new bone (osteoblasts) is harmonious but as we age, female hormones (estrogen) decrease, causing bone loss. The activity of osteoclasts, which destroy old bones, becomes active, and the activity of cells that build bone cannot keep up. As a result, bone mass and density decreases. This is called osteoporosis.
Osteoporosis increases the risk of fractures from even the slightest impact.

＜Read more＞