Well when I read this my mind had this weird scene of a carrot banging its head to some wall as a headache reaction =P (Well hey, you all know I have Childish Imagination!! BACK OFF)
National Center for Atmospheric Research in Colorado’s scientists discovered that plants release some gasses as a biochemical defense method…
This could be used as a warning system for farmers to tell that their plants are having issues prior to issues occurance…
Then again it could involve pullotion issues as well…
So no headbanging carrot… No tomato addicting painkillers… There goes my imagination *sob*…
For more details, check the BBC link.