By 
Mel Rosenberg
 | 
TED-Ed Original

What causes body odor?

Most of us don't need more than one whiff to identify that generally unpleasant characteristic smell we call body odor. But it's a surprisingly complex phenomenon influenced by our genetic makeup age diet and hygiene. So what is this odor exactly? Where does it come from? And can we do anything about it? Mel Rosenberg dives into the stinky science of body odor.

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