Sunscreen is our best weapon against skin cancer, which can be deadly. Most people don’t apply enough sunscreen to fully shield the skin as often as needed. Jim Watson/Agence France-Presse ...

So says the 1997 spoken-word song, "Everybody's Free (To Wear Sunscreen)", by Baz Luhrmann, based on an essay by Mary Schmich. What was then a no-brainer piece of health advice has in some circles ...