Gases are constantly entering and leaving our bodies, sometimes without permission... Some gases enter us when we eat or drink, while others are produced by bacteria during the digestion of food.
Welcome to the fascinating gas factory of our body!

In this book, you will find answers to the questions:
Why do we burp and fart?
How do animals fart?
How many times a day does a healthy person typically fart?
Should you try to hold in gas or can you let it pass freely?