The microbiome is a collection of trillions of bacteria that reside in and on our bodies. Each person’s microbiome is unique—just like a fingerprint—and researchers are finding more and more ways in which it impacts our health and daily lives. One example involves an apparent link between the brain and the bacteria in the gut. This brain-gut “axis” is believed to influence conditions such as Parkinson’s disease, depression, and irritable bowel syndrome. However, many studies into the brain-gut axis have stalled because of one central problem: the lack of an adequate testable model of the gut.
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Source: Phys.org