The visible signs of aging cannot be fully avoided, but can be
dramatically minimized. As far as the skin is concerned there
are two types of aging — intrinsic and extrinsic. Extrinsic
aging results from exposure to the environment. Extrinsic aging
is the critical element in determining who looks older or
younger than their biological age. Exposure to sunlight is a key
contributor to extrinsic aging. Photo-aging occurs when elastin
and a collagen breakdown are not replaced, causing fine lines
and wrinkles to intensify. Photo-aging also causes pigment
changes with development of age spots (sun-induced freckles) and
uneven skin tone. Spider veins and dilated capillaries are
another sign of photo-aged skin. Lifestyle choices also have an
impact on extrinsic aging. Cigarette smoking contributes to the
breakdown of elastin and collagen and impairs the body's healing
capacity.
