By 
Mel Rosenberg
 | 
TED-Ed Original

What causes bad breath?

Halitosis is a curse that has plagued humanity since ancient times. But what causes it, and why is it so universally terrifying? Mel Rosenberg outlines the basics of bad breath — and what you can do when it strikes you. [Directed by Andrew Foerster, narrated by Addison Anderson, music by Devin Polaski].

Related tags:

health
human body
ted-ed
animation
bacteria
health care
public health
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