How does smoking adversely affect the skin?

Smoking has a significant negative impact on the skin, primarily by accelerating the aging process and contributing to the formation of wrinkles. The harmful chemicals found in cigarettes, such as nicotine and tar, reduce blood flow to the skin, which in turn decreases oxygen and nutrient delivery. This lack of oxygen hinders the skin's ability to repair itself and can lead to a loss of elasticity.

Additionally, smoking affects collagen and elastin production, two essential proteins that keep the skin firm and elastic. With decreased production of these proteins, the skin becomes more prone to sagging and developing fine lines and deep wrinkles. Furthermore, the repetitive facial movements made while smoking—such as pursing the lips and squinting—can also contribute to the formation of wrinkles around the mouth and eyes.

While smoking can cause various other skin-related issues, such as a dull appearance or impaired moisture absorption, the acceleration of aging and wrinkle formation is the most significant and well-documented consequence, making it the correct choice in this context.