Some effects on human body are like skull that thickens. The brain decreases in size, no indicator that this affects mental function. Normaly, hair turns grey and becomes thinner; men might go bald. The nose and earlobes will become longer, wrinkles from facial expressions and sun exposure develop.

The eyesight lenses harden and loses transparency. The ability to see close objects diminishes. Skin becomes thinner and loses elasticity. Fat deposits under skin diminish and age spots develop. Ears have the ability to hear high-frequency sounds diminishes.

The lungs vital capacity declines. Heart's stroke volume diminishes. Kidneys filter blood more slowly and bladder's capacity declines.