Marijuana munchies are all in the brain, U.S. study finds

February 18, 2015 12:05 PM

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NEW YORK (Reuters) - If recent laws legalizing marijuana in more U.S. states also boost sales of potato chips and brownies, scientists will know why: A study in mice published on Wednesday found, unexpectedly, that the active ingredients in pot essentially make appetite-curbing regions of the brain reverse functions.

When that happens, neurons that ordinarily transmit a signal that means, "you're full, stop eating," instead give the brain the munchies, neurobiologists reported in the journal Nature.

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