Anxious Allele

Researchers from Weill Cornell Medical College and the University of California, San Diego, have linked a genetic variation in the fatty acid amide hydrolase (FAAH) gene to anxiety during adolescence, as they report in the Proceedings of the National Academy of Sciences this week. FAAH, they note, affects endocannabinoid anandamide (AEA) levels, which, in turn, affects the frontolimbic circuitry that's also involved in anxiety disorders.

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