Health & Fit: Slathering on Sunscreen May Do More Than Just Ward Off Skin Cancer - PressFrom - US
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Health & FitSlathering on Sunscreen May Do More Than Just Ward Off Skin Cancer

22:33  25 april  2019
22:33  25 april  2019 Source:   bicycling.com

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Slathering on Sunscreen May Do More Than Just Ward Off Skin Cancer© JosuOzkaritz/Getty Images
  • Sunscreen may have protective benefits that go beyond guarding against skin cancer, new research suggests.
  • A preliminary study presented at the American Physiological Society annual meeting found that wearing sunscreen can help protect the skin’s blood vessel function-important for body temperature regulation-from harmful ultraviolet radiation exposure.

Out for a long ride in the sun? Don’t forget to apply-and reapply-your sunscreen. There may be more protective benefits of sunscreen when it comes to ultraviolet (UV) radiation than just helping to ward off skin cancer, according to new research.

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A preliminary study presented at an American Physiological Society’s annual meeting at Experimental Biology 2019 in Orlando, Florida, found that wearing sunscreen can help protect your blood vessels from UV damage.

In the study, researchers exposed one arm of the participants to UV radiation either with no protection, sunscreen, or simulated sweat, and used the other arm as control. They were exposed to the UV-equivalent of being outside in the sun for one hour.

Unsurprisingly, wearing sunscreen helped blunt the effects of UV radiation-that’s something we’ve known for years. What was more unexpected? The sites with no protection showed a reduction in nitric oxide, a molecule that helps your blood vessels dilate and widen. But those that were treated with sunscreen or simulated sweat did not show that same decrease.

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That suggests a few things: For one, sweat does not seem to exacerbate the effects of UV, meaning you probably are not any more likely to get burned if you are breaking a sweat in the sun, as long as you use sunscreen. The second? Sunscreen may be doing more than just protecting your skin against cancer.

As the study found, unprotected skin shows a decrease in nitric oxide. That’s important, since this compound helps your blood vessels dilate, helping not only to regulate your body temperature, but also to increase blood flow and potentially lower blood pressure.

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“This [research] shows there might be additional effects of UV exposure aside from what we typically think of-skin cancer and sunburn-that are important to protect against,” study author S. Tony Wolf, M.A., Ph.D.(c), told Bicycling.

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Problem is, people don’t wear enough sunscreen to protect them from harmful radiation, Wolf added. According to the American Academy of Dermatology (AAD), most people only apply 25 to 50 percent of the recommended amount of sunscreen. Most adults need 1 ounce of SPF 30 or higher-enough to fill a shot glass-to fully cover their body.

The AAD also recommends applying sunscreen 15 minutes before going outdoors and reapplying every two hours and after sweating based on the recommendations on the bottle. So, if you’re out for a long ride, make sure you’re carrying sunscreen to keep yourself protected.

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