Fat under the skin is decreased. The amount of muscle in the body decreases. The width of the shoulders decreases. The width of the hips increases. Many organs, such as the liver, kidneys and brain, lose some of their cells.
Bones lose some of their minerals, such as calcium.
The body contains a smaller amount of water. Height decreases with age. A decrease of roughly one centimeter for every 10 years after the age of 40 is expected. Weight decreases with age. Men usually begin to lose weight around 55 years of age.