Aging is a process that is natural for everyone. Skin ages in two different ways, through inherited genes (intrinsic aging) and environmental exposure (extrinsic aging).
In other words, there are two factors that age us; gene-related intrinsic aging and environmentally-related extrinsic aging. We are all subject to both of these factors to varying degrees depending upon our overall lifestyle.
Intrinsic aging:
It is also known as the natural aging process. Intrinsic aging is the process by which our genes signal our epidermis to gradually slow our production of collagen and elastin, and dead skin takes longer to shed off as new skin cells regenerate more slowly. Intrinsic aging is a continuous process that normally begins in our mid-20s. The signs of intrinsic aging are
• Fine lines
• Fine Wrinkles
• Hollowed cheeks and eye sockets
• Noticeable loss of firmness on the hands and neck
• Sagging skin
• Dry skin and the inability to sweat sufficiently
• Hair loss or unwanted hair
• Thinning nails
• Loss of hair color
All these signs lie invisible below the surface of the skin for years. Although you cannot stop down the intrinsic process you can prevent it from occurring. How genes influence the aging process varies considerably from one individual to another. The Sufferers of Werner's syndrome age so prematurely that they sometimes developing cataracts in their twenties and can appear elderly when in their thirties.
Extrinsic Aging:
External factors that work havoc on the skin and encourage aging are exposure to harmful UV rays, repeated facial expressions, gravity, sleeping positions, and smoking and drinking decisions.
Liver spots, spider veins on the face, freckles, rough and leathery skin, fine wrinkles, a blotchy complexion, a loose skin etc are signs associated with UV damage. The process by which skin is damaged by the sun is called photoaging. Sun-damage causes the Elastin is also damaged, resulting in a loss of elasticity in skin.
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