We all recognize "old person" smell whenever it happens to grace our nostrils. But what in the world causes it? Plus, why can't we smell our own houses? And what causes "new car" smell?

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What Causes 'Old Person' Smell? — Plus Other Stinky Stories
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    What causes 'old person' smell?

    What causes 'old person' smell?

    "Let's go to grandpa's room and see if it still smells funny," said Tommy. "Last time it smelled like cheese..." replied Lil. Sure, these lines from …

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