Sun protection refers to methods and products used to shield the skin from harmful ultraviolet (UV) rays emitted by the sun. These rays can cause skin damage, premature aging, and increase the risk of skin cancer. Common sun protection measures include wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. Sunscreen is a key component of sun protection, with a Sun Protection Factor (SPF) rating indicating its effectiveness. It is important to apply sunscreen generously and reapply it every two hours, especially after swimming or sweating. Additionally, wearing hats and sunglasses can further protect sensitive areas like the face and eyes.