The brain appears to directly influence the gut microbiome, as brain signals altered the composition of gut microbes in mice in as little as 2 hours. The finding strengthens the notion that communication along the gut-brain axis goes both ways.
It is clear from previous studies that gut microbes can influence brain function and mood, but whether the opposite was true – that the brain could alter the gut microbiome – was less apparent.Tap the link to read more! 
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