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1 .This is Scientific American 60-Second Science. I'm Erika Beras. Got a minute?
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2 .Marijuana is the drug of choice for people who drink alcohol.
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3 .And people who use both are twice as likely to do so at the same time than to indulge in just one or the other.
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4 .That’s according to a study in the journal Alcoholism: Clinical and Experimental Research.
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5 .The data came from self-reported answers that more than 8,600 people provided to what’s called the National Alcohol Surveys, done by phone in 2005 and 2010.
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6 .People who used pot and alcohol were about twice as likely to drive drunk than those who just drank.
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7 .And they doubled their chances of what are referred to as negative social consequences, such as arrests, fights and job problems.
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8 .Meanwhile, another new study finds that if you’re chronically stoned, you’re more likely to remember things differently from how they happened, or not at all.
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9 .Researchers showed a series of words to people who do not use marijuana and to regular pot users who had not partaken in a month.
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10 .A few minutes later, all participants were shown the same list of words along with other words.
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11 .The volunteers were then asked to identify only the original words.
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12 .The pot smokers thought more of the new words were in the original list than did the nonusers.
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13 .And brain scans revealed that the regular pot users showed less activity in brain regions associated with memory and cognitive resources than did the nonusers.
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14 .The study is in the journal Molecular Psychiatry.
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15 .Marijuana use is much more acceptable than it used to be, both socially and legally.
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16 .But these two studies show that pot, especially when mixed with alcohol, can affect the brain in negative ways, both immediately and in the long run.
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17 .Thanks for the minute, for Scientific American 60-Second Science. I'm Erika Beras.
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