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Jaw-dropping science facts, part 6 Scientists have found evidence that gut bacteria has a direct physical effect on the brain, and suggest that it may one day be possible to treat diseases such as multiple sclerosis (and possibly even psychiatric disorders such as schizophrenia) by altering gut microbial composition.  Researchers at University College in Cork, Ireland, discovered that gut bacteria has a much more important role than was previously thought: they regulate nerve fibre insulation, affecting how impulses in the brain are conducted. According to The Guardian, which picked up on the story: 'Gut microbe research has exploded in the past 10 years, and in...

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