How does the ratio of organic and mineral substances of bone tissue change with age characteristics of a person?

The ratio of organic and mineral substances in bones changes with age. At a young age, the bones contain a fairly large amount of organic matter. They give elasticity and flexibility to bones. That is why fractures are rare in childhood, but the development of bone curvature is a very common occurrence. When the growth of the body stops, then organic matter is gradually replaced by mineral. They give strength to bones, but elasticity is lost. Fractures are therefore more common in older people.