Scientific American is the longest continuously published magazine in the US and the home of the most exciting authors presenting the most dynamic ideas in science today. As the leading popular source and authority on science, technology, and innovation, Scientific American's award-winning scientist-authored content engages, educates, and inspires current and future generations of curious citizens and public and private sector leaders.
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We harbor roughly the same number of microbes as we have cells. This complex ecosystem is crucial to our health, affecting many processes including immunity, child development, and bone density regulation. Research in this area has exploded, and in this a... SEE MORE