What is the primary cause of skin aging?

• A. Genetic factors
• B. A decrease in collagen and elastin production
• C. Increased exposure to air pollutants
• D. Dietary deficiencies

Answer: (B)

The primary cause of skin aging is a decrease in collagen and elastin production. Collagen and elastin are essential proteins that provide the skin with structure, strength, and elasticity. As individuals age, the production of these proteins diminishes, leading to the appearance of wrinkles, sagging skin, and an overall loss of firmness.

Collagen is responsible for skin’s firmness and resilience, while elastin allows skin to stretch and recover its shape. Their decline contributes significantly to the visible signs of aging, making this factor a central concern in understanding skin health. Additionally, while genetic factors, exposure to pollutants, and dietary deficiencies can influence skin condition, the direct connection of decreased collagen and elastin levels to the physical aging process makes it the primary cause.