TED: how our microbes make us who we are

At our bonfire last weekend, the conversation turned to why mosquitoes were only biting some of us. Apparently it’s all in our microbes. The science is fascinating.

Rob Knight is a pioneer in studying human microbes, the community of tiny single-cell organisms living inside our bodies that have a huge — and largely unexplored — role in our health. “The three pounds of microbes that you carry around with you might be more important than every single gene you carry around in your genome,” he says. Find out why. Here is a direct video link.

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