Why Do Tears Flow When Chopping Onions?
Enzymes called lachrymatoryfactor are released into the air when the onion is chopped or cut. Due to the effect it has on the eye, the eye produces tears as its own defense mechanism.
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Sam Bennett
26 Jan 2023 Updated.
Enzymes called lachrymatoryfactor are released into the air when the onion is chopped or cut. Due to the effect it has on the eye, the eye produces tears as its own defense mechanism.