Uploaded October 2011 | Updated September 2026, 13 hours ago

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Here is some good news for you: you can blame the sounds and odors that come from your body on bacteria. Yup -- those little critters are the ones responsible for a lot of what goes on inside our bodies. People can be uptight about all these bodily sights and smells, but understanding the science behind what may appear gross may make these things a little less gross.

So without further ado, check out the latest episodes of ChemMatters on the chemistry behind bad breath and acne.


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