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A chemical sensor in the body that makes you cry when you cut onions has been around for 500 million years, a new study finds.

This entry was posted on Friday, March 19th, 2010 at 8:31 pm and is filed under Bad Breath Information, Diseases, Conditions and Treatments, Health and Fitness. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.