Probiotics

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We know that our brains and our bellies communicate -- how else would we explain hunger, after all -- but growing research suggests the bacteria in our guts are at least somewhat involved in the conversation.The good ones, probiotics, live in the intestines and promote healthy gastro functioning. But in a 2011 study, Irish researchers found that feeding a certain probiotic bacterium found in yogurt to mice reduced "behaviors associated with stress, anxiety and depression," Discover magazine reported.The study's author called the findings "encouraging" in an interview with NPR, but cautioned that further research is needed.