The primary culprit for skin aging is ultraviolet (UV) light, particularly from the sun. This exposure causes photoaging, which is responsible for 90% of visible changes to your skin.
Here's how UV rays accelerate skin aging:
- Breakdown of collagen and elastin: UV light damages these proteins, which give skin its structure and elasticity, leading to wrinkles, sagging, and a loss of firmness.
- Increased pigmentation: UV exposure can stimulate melanin production, resulting in age spots, freckles, and uneven skin tone.
- Thickening of the epidermis: This makes the skin look rough and leathery.
- Weakened skin barrier: This makes the skin more susceptible to dryness, irritation, and infection.
While some aging is inevitable, photoaging is preventable. Protecting your skin from the sun with sunscreen, hats, and protective clothing can significantly reduce the impact of UV exposure on your skin.
