The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...

Did you know if you unfolded your intestines, they'd be taller than a giraffe? Yep, they form a digestive tube so lengthy it's got two sections. The so-called small intestine is about 22 feet long ...