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. Women begin to lose weight about 65 years of age, but at a slower rate than in men. The changes in total body water may make elderly people more likely to get dehydrated . The decreased muscle mass in the legs and changes in body shape can affect balance, walking and mobility. It is important to remember that aging is a gradual decline or aging that affects the entire body.