Your gastrointestinal (G.I.) system, the key player in your overall digestive health, is one of the most important systems in your body. It consists of the mouth, esophagus, stomach, small intestine, ...

Medically reviewed by Ashley Baumohl, RD Your digestive system plays a key role in turning food into energy for your body. The types of food you eat can make a big difference, especially when it comes ...

The central nervous system (CNS) consists of the brain and the spinal cord and controls most functions of the body and the mind. The CNS governs voluntary movements, such as walking, and involuntary ...

Digestion is a process where the body breaks down food into smaller particles to absorb them into the bloodstream. How long it takes to digest food can vary. Complete digestion of food takes anywhere ...