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http://dianafitness.blogspot.com
Wrinkles are a by-product of the aging process. With age, skin cells
divide more slowly, and the inner layer, called the dermis, begins to
thin. The network of elastic (the protein which causes skin to
stretch) and collagen fibers (the major structural proteins in the
skin), which support the outer layer, loosen and unravel, causing
depressions on the surface. With aging, skin also loses its
elasticity, is less able to retain moisture, oil-secreting glands are
less efficient and the skin is slower to heal. All of these contribute
to the development of wrinkles.
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