Sun damage refers to the harm caused to the skin by ultraviolet (UV) rays from the sun. This damage can lead to various skin issues, including sunburn, premature aging, and an increased risk of skin cancer. The skin's outer layer absorbs UV radiation, which can break down collagen and elastin, essential proteins that keep the skin firm and elastic. To protect against sun damage, it is important to use sunscreen with a high SPF, wear protective clothing, and seek shade during peak sunlight hours. Regular skin checks can help identify any unusual changes, allowing for early detection of potential problems related to sun exposure.