You may understand the respiratory and digestive systems as separate entities but, in many ways, the two are intimately connected. For example, breathing provides oxygen to help your digestive tract ...

These are not random metaphors. Stomach aches, bowel disruptions, nausea, and even vomiting are often expressions of a mental state, and the stomach sometimes tells us things that the brain has not ...

Hydration and nutrition are often discussed as different subjects. In reality, they work together every day inside the digestive system. Image Credit: Laia Balart/Shutterstock.com What a person drinks ...