8 Colossal Questions all about our bodies!

0:00 Why Do Paper Cuts Hurt So Much?
1:33 Why Do We Get Headaches?
3:56 Why Do We Dream?
5:39 Why Do We Sleepwalk?
7:36 How Do Viruses Work?
9:51 Why Do We Forget Things?
11:42 Why Do We Shiver When it's Cold?
13:08 Why Do Our Bones Crack Sometimes?

Images used under license from Shutterstock.com

Welcome to Colossal Cranium where you can find endless answers to all of life's most pressing questions!