Sunscreens are special lotions or creams that protect your skin from the harmful effects of the sun's rays. They work by either absorbing or reflecting the sun's ultraviolet (UV) radiation, which can cause sunburn and increase the risk of skin cancer. It's important to choose a sunscreen with a high SPF (Sun Protection Factor) to ensure effective protection, especially during outdoor activities. Applying sunscreen is essential, even on cloudy days, as UV rays can still reach your skin. Remember to reapply every two hours, or more often if you're swimming or sweating. Using sunscreen is a simple yet effective way to keep your skin healthy and safe while enjoying the outdoors.