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Red herring, no doubt imho. There is enough scientific evidence that nicotine per se is in the same class as caffeine at most.It is important to note that tobacco smoking was only described as an addiction by the 'Surgeon General" in 1988, before that point it was described as a psychological and social habit. This change was brought about, not by a change in the make up of cigarettes, but more likely how addiction was viewed by general society. Pre-1980's view of addiction was defined primarily by how the addict could impact society around him (intoxication, inability to contribute, levels one would go to satisfy the craving) whereas in the more enlightened post 1980's this view was also extended to include the damage the addict did to him/herself. It coincides with the nanny state, e.g. intervention with the citizen, attitude that has now permeated all levels of society, but that is a topic for another day.
Of course all this still relies on the belief that it is in fact nicotine that is the primary addictive substance in tobacco smoke. It may well be that it is a combination of those substances found in tobacco smoke that causes the brain chemistry to change, thereby creating the addiction. It would appear that tobacco addiction requires nicotine to sustain it but perhaps not nicotine to create it. To illustrate more clearly, the tobacco smoke concoction alters the brain chemicals subtly and increased levels of nicotine is then required for it to function normally. The cause and cure in one package.
That's the one theory, there is also now clear evidence that some people are genetically predisposed to nicotine 'addiction'. I propose it may very well be that a certain section of the population have inherent dopamine dysfunction, which is alleviated by the use of nicotine. Keep in mind dopamine plays an important role in modulating attention, concentration, appetite suppression, and movement .. sound familiar? The 'addiction' therefore becomes treatment.
This is of course semantics, but illustrates the point that once an addiction has been created by tobacco smoking, it may effectively be treated by non tobacco burning products, snus, vaping, nicotine patches etc. Vaping works especially well because it emulates the full action of smoking, easily tricking the habituated brain.
In summary the question that begs asking .. Nicotine, is it the demon of addiction or is it a red herring in this affair? If it's the latter, the above mentioned announcement by Gottlieb may be badly misplaced and actually casts a life line to the embattled tobacco industry. Keep in mind that chemical treatment is required to remove nicotine from tobacco introducing an opportunity for manufacturers to introduce even more harmful and possibly addictive by-products into smoking tobacco all under the guise of the 'legal requirement' and very likely without proper scrutiny.
Interesting reads:
Nicotine for treating ADHD, nicotine and its use for treating Parkinsons and possibly Alzheimers
For smokers and ex-smokers it is not that easy - this part from @JakesSA's post above is key: "It may well be that it is a combination of those substances found in tobacco smoke that causes the brain chemistry to change, thereby creating the addiction. It would appear that tobacco addiction requires nicotine to sustain it but perhaps not nicotine to create it.". I have read a research article that confirms this. Also, never smokers injected with nicotine over a long period of time in research around Alzheimers, Parkinsons, etc, did not become addicted.If nicotine on its own isn't addictive then vapers can surely have no objection to Gottlieb mandating zero-nic juice. If we're not hooked on it we shouldn't need it and its omission thus becomes a trivial matter.
Found this article.I think it may have to do with the intake mechanism rather than any chemicals that big tobacco are adding. Ex-smokers who have tried patches have reported that vaping is more satisfying. Yet ostensibly there should be little or no difference between the nicotine in a patch and in juice. I suspect it's the intake mechanism - inhaling it with a very short time duration before it affects the brain rather than applying a patch to the skin which takes longer to act - that creates a better nic hit and thus a more tangible addiction.
I find it very difficult to believe that the addiction is caused by something else but sustained/satisfied by nicotine. Smoking started centuries ago, long before Big Tobacco as we know it even existed or had the power or the technology to add chemicals that create addiction. Over the centuries, smoking gradually grew in popularity. I don't think it was because of how nice tobacco tastes for a first-time smoker so I can only assume that there is some sensory hit to which users easily become addicted.