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Why You Should Wear Sunscreen Daily

Applying sunscreen — just like brushing your teeth and exercising — is an important everyday habit, too

by Mona Gohara, MD | COMMENT

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The Invisible Risk of UV Rays Put simply, ultraviolet (UV) light is a type of radiation that comes from the sun. As you might expect, it is strongest in warm, bright climates and weather — but rest assured, if there is daylight, there's enough UV light to damage your skin. That's why sunscreen essential for every kind of weather... even through clouds, rain, or snow.

And yes: It's essential even if you don't plan on going outside. The windows in your car, home, and office may not offer enough defense against UV rays; nor will your favorite slouchy Madewell T-shirt. Broad-spectrum sunscreen is a necessity, even if you are just commuting to and from work, or sitting in a room with windows enjoying a book.

In the short term, inadequate protection against UV light causes damage in the form of sunburns and tans (and, yes, a tan is damage). And over the long term, scientists have attributed 90 percent of skin cancers and 90 percent of the visible signs of aging (aka wrinkles, sunspots, discoloration, and saggy skin) to cumulative UV exposure.

... Which is precisely why the American Academy of Dermatology recommends that everyone apply a broad-spectrum sunscreen with an SPF of 30 or higher, full stop — no matter where you are or who you are or what your skin tone is. It may sound like a big commitment, but once you learn what works for you, it's an easy habit to keep.

Image via LOUISE BEAUMONT/Getty

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