How do our intestines speak? It’s as simple as a rumbling in the bowels. Dr. Jack Franklin is a world renowned fart doctor who cares deeply about flatulence. Take the time to savor this moving talk, which asks big questions about how we expel gas from the anus.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and much more.

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