Why does chopping an onion bring out tears?

Pakistan
December 26, 2006 2:04pm CST
This ones been on my mind for quite sometime so I thought maybe someone on Mylot knows the answer.
2 responses
@kris55 (853)
• Canada
26 Dec 06
I dont know, but when I chop onions, I do open my mouth and try not to breathe in my nose, that seems to help
• Pakistan
26 Dec 06
Youd think this is funny but I sometimes put my swimming goggles on to chop onions..he he..
@kris55 (853)
• Canada
26 Dec 06
thats a good idea though!!
@maryannemax (12174)
• Sweden
26 Dec 06
onions contain sulfur. and sulfur basically when it gets into our eyes, it makes us cry. the sulfur in onions are in the form of gas. whenever we slice the onions, the sulfur gas is release. and this gas gets into our eyes making tears flow.
• Pakistan
26 Dec 06
Thanx a lot!