Peter, Jae Joon & Estevan show you what really happens in digestion. The details are all there... If your diet lacks fiber, watching this may encourage your gastrointestinal tract. Put it on your iPod, sit on the loo and sing along!
Words by Peter, Jae Joon & Estevan; GSIS, 2010.
Music & backup by Bobby McFerrin's "Don't Worry; Be Happy."
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