World's Grossest Human Body Facts

From earwax and bad breath to boogers and burps, the human body is a disgusting place. Learn about your body''s sticky, smelly functions that help you stay healthy.

Take a tour of the ugly, smelly, and nasty with the World’s Grossest series—part of the UpDog Books™ collection. You’ll learn the world’s most revolting facts about history, animals, human bodies, and more. Check out each book’s disgusting diagram and compare icky topics to decide which is grosser.