From guts to brains – eating probiotic bacteria changes behaviour in mice

From guts to brains – eating probiotic bacteria changes behaviour in mice:

From “gut feelings” to “having some guts”, English is full of phrases where our bowels exert an influence upon our behaviour. But these are more than metaphors. There are open lines of communication between brains and bowels and, in mice at least, these channels allow an individual’s gut bacteria to steer their behaviour.

The latest evidence for this “gut-brain axis” comes from Javier Bravo at University College Cork. He fed mice with a probiotic bacterium called Lactobacillus

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