Dorothy Matthews has just completed an interesting test that suggests bacteria boosts brain power. Testing on white mice (how cliche), Matthews found that the mice who were given the bacteria Mycobacterium vaccae hurried through a maze twice as fast as the mice who hadn't eaten it.

Of course, the test didn't just happen once. Dorothy Matthews says the mice who were given the bacteria actually performed faster in "18 more trials over the next six weeks, showing they weren't just made more alert by a surprise change to their treat."