Because vaping felt and looked like you were smoking. So that part was taken care of. And nicotine comes into your body and says here I am old friend. And your brain believes everything is just fine.Then why for the first 3-4 days of my switch did vaping satisfy my urges?
Yes I remember that article when it came out in 2014. I still have a copy of it back then. One of the best articles on nicotine.