Age is reflected in many ways when examining a human body, whether dead or alive. The human body is made up of fat, muscles and organs, bones, water, and other substances. As we age, the amount and distribution of these materials will change. Fat tissue may increase toward the center of the body, including around the abdominal organs. The amount of body fat may increase by as much as 30%. As fat increases, lean body mass decreases. Your muscles, liver, kidney, and other organs may lose some of their cells. This process of muscle loss is called atrophy. Bones may lose some of their minerals and become less dense, a condition called osteoporosis. Tissue loss reduces the amount of water in your body. You may become shorter. The tendency to become shorter occurs among all races and both sexes. Height loss is related to aging changes in the bones, muscles, and joints. People typically lose about 1 cm (0.4 inches) every 10 years after age 40. Height loss is even greater after 70 years old. In total, you may lose 1 to 3 inches in height as you age.
Our bones can tell more about a person’s age if looking at it upon an autopsy table. Bone mass or density is lost as people age, especially in women after menopause. The bones lose calcium and other minerals. The spine is made up of bones called vertebrae. Between each bone is a gel-like