Comment Re:Anyone who reads (Score 1) 64
I hypothesize that the smoking linked gene might simply be "pushed out" due to the frequency of damage caused by smoking, so the gene might be expressed due to the exposure of tobacco/cannabis during youth, and in turn making them smell garbage/feces when exposed to it. Any time I run into people who still smoke, they smell absolutely disgusting it's smell that reminds me of campfire when you burn green/wet stuff. Cannabis smokers are worse, they smell like they rolled around in garbage juice or dog poop.
The celiac disease might be a consequence of the high-sugar content of bread in the US, and how quickly it goes moldy. When exposed to green mold too many times it likely causes the gene to get turned on and say on, and subsequently tries to get you to stop consuming bread by not digesting it, but it goes too far and doesn't send a signal of "I feel sick" to the human but rather" it isn't noticed at all until they stop being able to digest food.