Whole Health Naturopathic Medical Center: Sun: Friend or Foe?

As summer winds up and temperatures climb, many people head to the seacoast or lakes for vacation. As they do, they pull out their sunscreen, sun-protective clothing, hats, and sunglasses in preparation. Sun exposure is a big concern for many people, and the media is constantly reminding us that sun exposure causes oxidative damage to the skin, resulting in wrinkles and skin cancer. But is skin health only determined by sun exposure?

Another factor that contributes to skin cancer is our susceptibility to oxidative damage. Oxidation is the actual process that causes mutations in the cells of the skin. Susceptibility to oxidative damage not only in the skin but also in the rest of the body depends on several factors, including our nutrient status, ability to manage stress, our diet, and other chemical exposures (like smoking, for example). Many studies have shown that people who have higher antioxidant status also suffer less oxidative damage to the skin when exposed to UV light.

Another reason not to entirely avoid sunlight is its health benefits. Sunlight exposure improves mood in many people. It has even been found to protect against multiple sclerosis, some cancers, and is required for the body’s synthesis of vitamin D (an important nutrient for bone and immune system health). Vitamin D formation in the skin can be blocked by any sunscreen at SPF 8 or higher. Sunscreens also contain PABA, a cancer-causing agent, and many other chemicals that can irritate the skin. Although a chemical like PABA may prevent sunburn, it may actually increase skin cancer!

So what’s the bottom line when it comes to sun exposure? Use your common sense. Understand your own skin’s sensitivity, and use sunscreen, hats, and protective clothing when appropriate. Be sensible about your exposure. And now that summer’s here, don’t be afraid to get out and enjoy a little sun!

Monday, July 10, 2006

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