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1. Why do onions make you cry?
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1. Why do onions make you cry?
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Explanation:
Onions also contain an enzyme called synthase. When you cut into an onion, the synthase reacts with the sulfur to create a chemical compound called syn-Propanethial S-oxide. This compound is volatile and creates a gas that floats up to your eyes and triggers your lachrymal gland—the gland that produces tears.