A lot of us always think that wrinkles are usually result of natural aging and drying of the skin. They are actually cause by radiation and chemical sun damage. The radiation comes mainly in the form of harmful sun damage, and chemical injury is most common with cigarete. Many women in their 70's and 80's have smooth skin but exhibit some changes of aging such as jowis and neck bands. People who spend a lot of times under the sun often have thickenes, leathery skin along with deep and fine creases and lines. Smokers often have extensive fine line wrinkles running from the mouth outwards and around the eyes.