What is a factor that can contribute to premature skin aging?

Sun exposure is a significant factor that can contribute to premature skin aging. When the skin is exposed to ultraviolet (UV) radiation from the sun, it can lead to a breakdown of collagen and elastin, which are essential proteins that maintain skin’s elasticity and firmness. This degradation can result in fine lines, wrinkles, and a loss of radiance over time. Additionally, UV exposure can lead to pigmentation changes, such as age spots, furthering the appearance of aging skin.

Contrastingly, consistent hydration, regular exercise, and proper nutrition are factors that typically promote skin health and can help in preventing premature aging. Hydration ensures that the skin remains plump and supple, while regular exercise improves circulation, aiding in the delivery of nutrients to the skin. Proper nutrition, rich in antioxidants and essential fatty acids, supports skin repair and renewal processes. Thus, while the other choices contribute positively to skin health, sun exposure is a clear risk factor for accelerated aging.