Stress is a major cause of skin sabotage that can lead to a dull, dry complexion. This is mostly due to the fact that stress encourages the production of cortisol, which diminishes your skin's production of natural moisturizers, such as hyaluronic acid. It also affects the skin's natural protective barriers, causing it to become dry and damaged. In order to reduce your stress levels, try meditation, and make sure you're getting enough exercise. Say no to winter stress and weight gain with these tips.