Aging is also a major cause of skin aging. Years of exposure to the sun causes the support structures of the skin, primarily the elastin and collagen to weaken and break down. Moreover, as a person ages, the sweat and oil glands of the skin become less numerous and smaller in size. This causes the skin to lose moisture and dry out. Dry skin with weak collagen and elastin sag, shrivel, and wrinkle. The skin around the eyelids, jaw and neck is especially thin, and therefore more naturally prone to aging.
Other environmental factors, including cigarette smoking and pollution, especially ozone, can accelerate aging by producing oxygen-free radicals. These particles are produced by many of the normal chemical processes of the body in excessive amounts can damage cell membranes and interact with genetic material, possibly contributing to the development of a number of skin disorders, including wrinkles and, more importantly, cancer . Rapid weight loss can also cause wrinkles by reducing the volume of fat cells that cushion the face. This not only makes a person look Gaunt, but it can cause the skin to sag.
Symptoms of wrinkles
1. Deeply formed lines.
2. That the skin is wrinkled it can also have a hard, leather look if the person has had a lot of exposure to the sun.
3. Well, crinkling crosshatch marks.