Why is sunscreen good for you?

Sunscreen in itself is not necessarily good for you- I mean, if you put it on and then stay inside all day, it won't do you any good. But if you're out in the sun a lot, sunscreen is a really good idea. Sunscreen protects your skin from the sun's UV rays which may be very harmful to your skin. The sun is very hot, and may give you a sunburn, heat rash, or even skin cancer if you are out too much without sunscreen. Sunscreen doesn't guarantee you WON'T get any of these, but it will help lesser the chances. Tip: ALWAYS WEAR SUNSCREEN!