Why do the skin starts wrinkling with age?

Why do the skin starts wrinkling with age?

Wrinkling of skin is the inevitable fact of aging. Actually with the age our skins starts getting thinner and drier due to the decreased production of natural oils . It  loses its elasticity and becomes more fragile. Even the fat in the deeper layers of the skins diminishes. All these facts collectively cause the loose and saggy appearing skin with more-Pronounced lines creases on it.