LOVE YOUR GUTS. 90% of your serotonin is made in your guts and you have hundreds of trillions of friends clinging to you at all times. Microbiologist Dr. Elaine Hsiao is a total badass who runs her own lab investigating the role of the gut biome in behaviors. She sat down to chat about anxiety, depression, elusive fecal transplants, autism, epilepsy, kombucha promises, autoimmune disorders, probiotics and more. Alie fanned out pretty hard and asked all of the questions about how your beloved, simmering insides affect your brain. It's gut-busting, mind-blowing info.

Check out Dr. Elaine Hsiao's lab or follow her on Twitter @pipethero

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Sound editing by Steven Ray Morris

Theme song by Nick Thorburn

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