Our microbiomes—the complex communities of microbes that live in, on and around us—are influenced by our diets, habits, environments and genes, and are known to change with age. In turn, the makeup of our microbiomes, particularly in the gut, is well-recognized for its influence on our health. For example, gut microbiome composition has been linked to inflammatory bowel disease, autoimmune disease, obesity, even neurological disorders, such as autism.
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Source: Phys.org