An introduction to the amazing functions of the human body's digestive system. An introduction to the amazing functions of the human body's digestive system. Our continued survival as individuals and ...

Your liver is essential to your good health. The liver is an important part of the digestive system. It performs more than 300 different function in the human body. Learn more about the liver.

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 ...

Sleep and digestive health are closely linked through what experts call the gut–sleep axis. Poor sleep can disrupt digestion by affecting hormones, the body's circadian rhythm and the gut microbiome, ...

The human body runs on chemistry—from the water that regulates temperature to the proteins that carry oxygen and signal cells ...