Over the last several decades, instances of skin cancer have been on the rise in the United States. Dermatologists agree that people need to protect themselves from the sun's ultraviolet (UV) radiation year round. Damage caused by UV rays includes premature aging (wrinkles and age spots) and skin cancer. In addition, certain medications such as retinoids can make people extremely sensitive to the sun. It only takes 5 instances of sunburn in your lifetime to dramatically increase your chances of developing skin cancer later on.
The sun's UV rays can reach you and cause damage on cloudy, hazy days, as well as bright, sunny days. Its influence is strong in winter, too. Since avoiding the sun completely is virtually impossible, using sunscreen is the best way to prevent sun damage and decrease your chances of developing skin cancer. Moreover, skin that is protected by sunscreen every day stays younger looking longer, with fewer wrinkles and discolorations.