Question special
Lead Moderator

The past few days I have surveyed friends and family members who (unfortunately) still smoke cigarettes. As someone who has thought about cigarette addiction through a primarily academic lens, I found their comments to be interesting.
One person insisted that the addictive nature of cigarettes for him is not nicotine -- as trials of a nicotine patch have been futile. He believes it is the additives in cigarettes that somehow cause his addiction. For example, there is a cigarette brand that is additive-free. He said that this brand "does nothing" for him or his friends, and he quickly switched back to his regular, additive-filled cigarette brand.
A quick investigation revealed that additives in cigarettes include, for example: cocoa, licorice, sugar, ammonium sulfide, butanone and isobutyric acid.

What are we to make of the role of additives in cigarettes 1) in general and 2) in the context of addiction?