Stress can affect skin health in several ways. When you are stressed, your body releases cortisol, a stress hormone, which can lead to increased inflammation in the skin, causing conditions like acne, eczema, psoriasis, and rosacea to flare up. Stress can also weaken the skin's barrier function, making it more prone to infections and irritations. Additionally, stress can affect the skin's ability to repair itself, leading to slower healing of wounds and blemishes. It's important to manage stress through relaxation techniques, exercise, and self-care to help maintain healthy skin.