With age, there are many physiological changes in the skin and surrounding tissues. As one gets older, the skin naturally loses its elasticity and tone. The skin also becomes thin and fragile. There is diminished production of natural oils that help protect the skin and make it look younger. Fat stores in skin generally disappear with age- these fat store help support the skin and maintain a plump and toned skin. Once the skin loses elasticity, wrinkles and crevices start to develop . Along the neck and upper arm, the skin may even start to sag.