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This is Scientific American's 60-Second Health.I'm Dina Fine Maron.Got a minute?

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You may love to soak up the sun or the UV rays at the tanning salon.

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But are you actually addicted?

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A study finds that mice regularly exposed to UV produced the feel-good opioid ¦Â-endorphin, and behaved like addicts.

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What's more, when they were given a drug that blocked the opioid effects, they went through the rodent equivalent of withdrawal: shaky paws and chattering teeth.

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The study is in the journal Cell.

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The mice were exposed to UV light roughly on par with a fair-skinned human soaking up a half-hour of Florida midday sun, five days a week for a month-and-a-half.

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But it took just one week for the endorphin levels to zoom.

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Mice are normally nocturnal and, of course, covered by fur.

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But the research team says that the apparent physical reward for UV exposure suggests it's worth exploring if a similar chemical reaction may be spurring humans to keep running to the beach or tanning bed.

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They also say it's likely sunblock would protect against these UV-induced addictive behaviors.

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Yet another reason to slather on the sunscreen.

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Thanks for the minute, for Scientific American's 60-Second Health. I'm Dina Fine Maron.

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