Which lifestyle factor can negatively impact skin health?

Smoking is the lifestyle factor that negatively impacts skin health due to its numerous harmful effects on both the skin’s appearance and its overall function. The chemicals in cigarettes reduce blood flow, constrict blood vessels, and diminish oxygen supply to the skin, leading to premature aging, such as wrinkles and sagging. Additionally, smoking decreases the skin's ability to heal and may exacerbate skin conditions like psoriasis. The toxins in cigarette smoke can also harm collagen and elastin, which are vital proteins that help maintain skin elasticity and firmness.

In contrast, regular exercise, a balanced diet, and proper hydration promote better skin health. Regular exercise enhances blood circulation, which delivers vital nutrients to the skin. A balanced diet rich in vitamins, minerals, and antioxidants supports skin repair and rejuvenation, while staying well-hydrated ensures that the skin remains supple and retains moisture effectively.