Most people like to get a little sun. Its warmth and light can relax us and boost our spirits. But the benefits come with a dangerous tradeoff. Each year more than 3.5 million cases of skin cancer are diagnosed in the US, over 90 percent of which are caused by the sun's ultraviolet rays (UVR). Similarly, most of the skin damage we associate with aging - wrinkles, sagging, leathering, and discoloration - is UVR-related. This damage is cumulative. So, whenever you venture out in the sun, be smart about it. To enjoy what the sun has to offer without risking your health, follow these attached simple rules.