Recently, neuropsychologists have uncovered a link between the chili pepper and risk-taking. But what does history tell us? And how does a plant native to South America find itself as the defining element of the cultural identity of Sichuan? This week, on the last episode of China Unseen, I bring to you the fascinating story of how China fell in love with the Chilli - a story of economics, two wars and medical philosophy.

Find more travel stories on #PostcardsFromNowhere with Utsav Mamoria.

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