EVERYDAY SCIENCE

Detailed explanation-1: -Bone continues to change over the course of a person’s lifetime. While they do not grow longer, for example, bones can become thicker during adulthood. Bone thickening is often in response to increased muscle activity, such as weight training. Bones can also heal and repair themselves.

Detailed explanation-2: -During your childhood and teenage years, new bone is added (or deposited) to the skeleton faster than old bone is removed (or withdrawn). As a result, your bones become larger, heavier, and denser. For most people, bone formation continues at a faster pace than removal until sometime after age 20.

Detailed explanation-3: -Around age 30, most people reach their peak bone mass. After reaching peak bone mass, your body replaces about as much as it loses for a while. But around age 40, less bone is replaced. And this causes the bones to become thinner and weaker, increasing the risk for osteoporosis.

Detailed explanation-4: -Bones stop growing in length between the ages of 16 and 18. But the total amount of bone tissue you have – your bone density – continues to increase slowly, until your late 20s.

Detailed explanation-5: -Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.