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.jp. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific American's 60-second science. I'm Erica Barris. Got a minute?

Marijuana is the drug of choice for people who drink alcohol. 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.

That's according to a study in the journal Alcoholism, Clinical and Experimental Research.

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. People who used pot and alcohol

were about twice as likely to drive drunk than those who just

drank. And they doubled their chances of what are referred to as negative social consequences,

such as arrests, fights, and job problems. 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.

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.

A few minutes later, all participants were shown the same list of words along with other words.

The volunteers were then asked to identify only the original words.

The pot smokers thought more of the new words were in the original list than did the non-users.

And brain scans revealed that the regular pot users showed less activity in brain regions associated with memory and cognitive resources than did the non-users.

The study is in the journal, Molecular Psychiatry.

Marijuana use is much more acceptable than it used to be, both socially and legally.

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