What Causes Wrinkles?

Many changes occur in the skin as it ages. Two important substances make up the skin (in addition to others): collagen and elastin. If one looks at the skin under a microscope, there are very clear predictable changes that occur in the organization and amouts of these components as one ages. A variety of things impact upon this process including sun damage (extremely important), smoking, and perhaps even things such as air pollution. Genetics/heredity, "nationality", and race also... more