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Why you smell better with your nose than with your mouth

(Springer) The marked difference in how much better you recognize odors you breathe in than those that are released when you chew something can be explained by the workings of the epithelium cells that line the nasal cavity. The study was led by Thomas Hummel of the Technische Universität Dresden in Germany, and is published in Springer's journal Chemosensory Perception.
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