Beakman gives a demo of the digestive system and shows how it all works normally. Then he shows that, when your brain tells it to function in reverse, it will cause you to throw up.

This clip explains the purpose of the digestive system and how it works. It covers the main components of the system and illustrates the process of digestion using examples and visuals.

Sophie explains why we eat food: to ingest chemicals such as nutrients. She dissects a salad to illustrate the different types of nutrients our body needs: carbohydrates, proteins, and fats. She provides an example of each type of nutrient.

This clip explains how drinking alcohol actually makes you drunk. When the molecules that make up alcohol enter your body, they change the chemical makeup and react with different parts of your body that ultimately makes you feel "drunk."

Hank explains the different types of nutrients that our body needs: water, vitamins, minerals, carbohydrates, lipids (fats), and proteins. He explains what each type of nutrient is used for and how it's used by the body.