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In recent years, a body of research has shown that beneficial microbes play a critical role in how our bodies work. And it turns out there's a lot of communication between our gut and our brain.
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As people's health waxes or wanes because of stress or disease, their intestinal ecosystems change, too. It may be possible someday to diagnose disease by analyzing the gas the microbes make.
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Many of us take antibiotics when we get tummy troubles in developing countries. Scientists say this opens the door for a dangerous visitor in the GI tract. These microbes can stick around for months.
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At 31, a woman had the bacteria in her gut catalogued as part of scientific project that aims to characterize the creatures that live inside us and affect our health. Here's what she found out.
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Rotavirus kills more than a half-million kids around the world each year. Now scientists have evidence that the secret to stopping it is hiding in the trillions of bacteria of our microbiome.