Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Sign in with Amazon

Science

Why do onions make you cry?

Cutting onions causes lachrymatory-factor synthase to be released, which combines with sulfur in the onion to form syn-propanethial-S-oxide. This is a volatile compound which easily turns into a gas and stimulates your lachrymal (tear) glands, causing you to cry.

{{ relativeTimeResolver(1577252827730) }}

LIVE

Points

6457

Rating

Similar Questions

Sign in to view all similar questions

Why don't onions make you cry?

Science • 2 Answers

Why do onions cry?

Science • 1 Answer

Why does peeling onions make you cry?

Science • 1 Answer

Why do you cry from onions?

Science • 1 Answer

Why do onions make you cry when you cut them?

Science • 1 Answer

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world