Not available at the moment http://poweltonvillage.org/resources-esl/ organic chemistry online help  People aren't addicted to smoking, they're addicted to the stimulant nicotine which has the same effect on the brain as caffeine and alcohol. (Although alcohol in excess obviously has more detrimental effects.) The hand to mouth action and similarity to 'smoking' without the dangers is available in e.cigarettes, no withdrawal symptoms and no one's died from using one. It's the solution that works