The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...

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 ...

Your autonomic nervous system (ANS) is the part of your central nervous system (CNS) that controls unconscious activities like breathing and digestion. This system is always working, whether or not ...

The liver, located in the upper right side of the abdomen, is the body’s largest organ and one of the most important. The liver performs hundreds of vital functions, including converting nutrients ...

Your nervous system is a network that sends signals between your brain and other parts of your body to control your body's movements and processes. This system includes your brain, spinal cord, and ...