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*WHY DO ONIONS MAKE US CRY?*
*>It is not the strong odor of the onion that makes us cry, but the gas that the onion releases when we sever this member of the lily family.
*>The onions itself contains oil, which contains sulfur, an irritant to both our noses and to our eyes, cutting an onion arouses a gas contained within the onion PROPANETHIOL S-OXIDE, which then couples with the enzymes in the onion to enait a passive sulfur compound.When this upwardly mobile gas encounters the water produced by the tear ducts in our eyelids, it produces sulfuric acid.
*>In response to the caustic acid, our eyes automatically blinks, and produce tears which irrigate the eye, and which flush out the surfuric acid.
*>Another reflex to rid the eyes of a foreign subtance, that of rubbing our eyes with our hands, Often exacerbates the situation, because our hands are coated with caustic, sulfuric acid producing oil from cutting the onion, which we then rub directly into our eyes.
*>Much to our chagrin, the only remedy for ridding the onion of its pungent irritating oil is to boil it, not to slice it, or dice it...
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>HOW COME TEARS COME< >OUT OF OUR EYES WHEN< >WE CRY<
Tears flow our eyes when we cry because they contain chemicals and hormones produced by our bodies. When we become upset, our brains and bodies overreacted and work overtime producing chemicals and hormones, crying helps eliminate these extra chemicals that we don't need.
That is why many people feel calmer or more refreshed after crying... because the tears get rid of these hormones that are produced when we are sad, happy or distressed..