How Do Our Bones Keep Getting Bigger?

Bones that we see look hard and solid. In your body, bone is a living part of you. It has its own special blood supply and special cells for making or taking away the hard stuff, which is made mostly out of calcium and phosphate.

Throughout our lives our bones are slowly changing or being remodeled. At your age, your bones are increasing in size and length.

After middle age, bones tend to decrease in size and most people actually decrease a little in height.