Medical Information
What is Skin Aging?
Skin aging is a complex biological process involving both intrinsic and extrinsic factors that gradually alter skin structure and function. Understanding these mechanisms is crucial for developing effective prevention and treatment strategies.
Medical Definition
Skin aging is the progressive deterioration of skin structure and function over time, characterized by decreased collagen production, reduced elasticity, and impaired barrier function resulting in visible signs of aging.
- Involves breakdown of collagen and elastin fibers in the dermis
- Includes two main types: intrinsic (chronological) and extrinsic (photoaging) aging processes
- Most commonly manifests on sun-exposed areas like face, neck, and hands
- Can range from fine lines and wrinkles to deep creases and volume loss
- May be accelerated by lifestyle factors, genetics, and environmental exposures
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