Every hour, one American dies of skin cancer. There are more cases of skin cancer than all other cancers combined. One in every five people will get skin cancer in his lifetime. Those are staggering odds. When UV light hits our skin, it damages the cells.
Melanin is actually an energy sponge to absorb the damage from further UV damage.
So in order to get a tan, you have to be injured. If you're spending a day at the beach or at the pool, cover up with waterproof sunblock. Apply sunscreen liberally and reapply every 2 hours when working, playing, or exercising outdoors. Even waterproof sunscreen can come off when you towel off sweat or water. Remember your ears, nose, neck, and hands.