The sun is an important part of our lives. Sunny days have a positive impact on our mood, increase our level of physical activity, make many social events and gatherings possible, and even benefit our health by providing our bodies with essential vitamin D. Unfortunately, sun exposure also presents risk factors that can lead to skin or eye damage, and even skin cancer. Skin cancer is the most common of all cancer types. Most skin cancers are caused by too much exposure to the sun’s ultraviolet (UV) rays. Prevention and early detection are the best ways to keep your skin healthy. It’s important to learn what you can do to protect yourself and how to spot any possible signs of skin cancer.