Dr. Christina Warinner is an assistant professor of Anthropology at Harvard University in Cambridge, Massachusetts.
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33:23
Lactose Intolerance May Have A Lot To Do With Your Gut Microbiome
A third of the U.S. is lactose intolerant, and studying the microbiome might explain why.
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16:18
The Origin Of The Feces
What our ancestors’ feces can tell us about ourselves.