Skin aging is a natural process, but it is often accelerated by the environment and lifestyle. This kind of aging caused by preventable factors is known as extrinsic aging.
This article discusses the various signs and symptoms of aging and talks about lifestyle changes that can help delay skin aging.
Signs of Skin Aging
Genetics and the environment determine much of the way each individual ages. (1) Signs of aging include:
- Dullness
- Roughness
- Uneven skin tone
- Discoloration such as brown and red spots
- Loss of skin elasticity and volume
- Fine lines and wrinkles
Such visible signs of skin aging can start as early as in your 20s.
Factors That Contribute to Premature Skin Aging
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<p>The most notable factor for skin aging is ultraviolet (UV) light exposure. <a href=)
(2) UV rays cause DNA damage when they hit your skin, resulting in cellular defenses in the form of a tan, freckles, and, ultimately sunburns.
UVB penetrates superficially and is responsible for the tanning response. UVA penetrates the deeper layers of skin and is responsible for photoaging by creating oxidative stress. This damages collagen and causes the production of abnormal elastin fibers, which manifest as wrinkling.
Sources of UV light include the sun and tanning salons. Much of this light is emitted by screens such as phones and computers. Other habits that may add to premature aging include smoking and repetitive facial expressions.