TED-Ed

Why do we pass gas? - Purna Kashyap (2014x104)

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Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you). Where does your bodily gas come from? Purna Kashyap takes us on a journey into the intestines, shedding light on how gas is made, which foods contribute most to its production...and why it stinks. Lesson by Purna Kashyap, animation by Ace & Son Moving Picture Co., LLC.