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The microbes that live in and on our bodies are fundamentally involved in our well-being. How they affect our health, though, is largely unknown due to the number of different bacteria that call us home and the complexity of our interactions with them.

A project from the National Institutes of Health, the Integrated Human Microbiome Project (iHMP) is attempting to dive into those interactions and understand the nitty-gritty of how the microbiome affects hu