Eddie Johnson is in study hall, and he is hungry. The Digestion Supervisor inside his stomach describes what happens to Eddie's body when he's hungry. She explains what the sound of stomach grumbling really is and illustrates how it impacts the brain and Eddie's ability to study.
Eddie Johnson has consumed a lot of sugar, and The Pancreas Supervisor explains how he handles the emergency situation. He covers how the pancreas reduces sugar levels in the body using insulin and describes the result of the sharp drop in sugar levels: a sugar crash.