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This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?

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Cup of coffee after a night on the town to sober up?

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Well, a mouse study finds that caffeine does not counter the intoxicating effects of alcohol.

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It merely masks the inebriation, which could lead to poor decisions.

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Because drinkers might think they've sobered up, whereas they could just be more wired.

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The study is in the journal Behavioral Neuroscience.

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Researchers gave mice doses, separately and together, of caffeine and alcohol.

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Tests then gauged how well the mice learned how to avoid part of a maze that appeared dangerous because of bright lights or loud sounds.

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And mouse anxiety was tested, through their willingness to be in an open area.

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No surprise, drunk animals were more relaxed and had less anxiety, and had trouble learning to avoid possible danger.

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Then the mice got alcohol and caffeine together.

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And the caffeine did not improve a drunk animal's ability to learn.

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So the mouse is more relaxed but less able to avoid threats,

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if it had a tiny car available it probably would have thought it was "fine, I'm fine enough to drive it."

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Steve Mirsky.

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