Bone is a living tissue that continually remodels itself during life.
Some bone cells absorb bone tissue, while others re-form the bone's surfaces.
Normally, these processes are well balanced. A person's peak bone mass occurs at about the age of 35. After age 35, it's important to continue a calcium-rich diet and an appropriate exercise program. Many people take calcium supplements. However, it's important for those considering the use of supplements to check with their doctor first, especially if they have a history of kidney stones.