It's all about the vagus nerve!
Still looking into this, but here's the scoop... first published in PNAS and then picked up and reported by Ira Flatow for NPR's Science Friday yesterday:
Reporting in Proceedings of the National Academy of Sciences, researchers write of reducing anxiety and stress in mice by feeding them a probiotic-laced broth. Study author John Cryan discusses how the gut influences the brain, and whether the same might hold true in humans.
Other reports of this story:
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