We hope that you wear sunscreen while relaxing at the beach, lounging at the pool or doing any outside activity. But do you wear sunscreen every other time you're outdoors? We're sure you'll be able to guess what Dr. Schultz thinks about this and when you should and shouldn't be wearing sunscreen. He suggests that you should apply sunscreen everyday, and for two reasons. One important reason is that ultraviolet light is present whenever you're outside, even on a cloudy day where you think the sun's rays are blocked. Although it may not be as strong as UV light on a sunny day, that ultraviolet light hitting your skin is still capable of burning and damaging your skin. Dr. Schultz advises you to use a sunscreen that has an SPF between 15 and 50.