There's rarely time to write about every cool science-y story that comes our way. So this year, we're once again running a special Twelve Days of Christmas series of posts, highlighting one science ...

CHICAGO — The human digestive system breaks down foods and liquids into macro and micro nutrients, which are then absorbed by the bloodstream and transported throughout the body to keep it functioning ...

New research finds there is significant variation in the anatomy of the human digestive system, with pronounced differences possible between healthy individuals. The finding has implications for ...

This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

Using new technology, researchers at UC Davis and Stanford University are able to study microbes and metabolism in different parts of the human digestive system for the first time. (Getty Images) Most ...

Chemical digestion occurs when the body uses enzymes to break down certain molecules, such as carbohydrates. This process allows the bloodstream to absorb smaller molecules to transport around the ...

image: New research finds there is significant variation in the anatomy of the human digestive system, with pronounced differences possible between healthy individuals. The finding has implications ...