Bacteria are often regarded s pathogens, with deleterious impacts on the human body. However, it is known that the presence of trillions of bacteria on and in the human body impart beneficial effects on human health. Like a fingerprint, each individualâ€™s microbiome is unique. The composition of bacteria in one personâ€™s gut is different from the gut bacteria in another individual. Together, the human gut microbiome is a complex mix of organisms that is commonly referred to as â€œthe second brain.â€� Its role in the human body goes beyond digestion and immune system function.
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