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.

Would you kill for a pair of Air Jordans? Lemon Andersen spins a tale of someone who did, reciting a poem by Reg E. Gaines. These verses taught Lemon that poetry could be about more than self-expression, and could sound like music when given rhythm and infused with the grit of the New York streets around him.