They are.
Subtly, yes. But they do - if they didn't, why would someone get addicted to cigarettes?
I have friends that claim they are addicted to chocolate. Is this also a perception altering substance?
If cigarettes are in the same rank as marijuana & alcohol, can you provide me with the numbers for drivers convicted of driving under the influence of tobacco???
Actually, chocolate is absolutely a "perception altering substance".
Phenethylamine - Wikipedia, the free encyclopedia
And, no - I clearly did NOT put cigarettes on the same rank as marijuana and alcohol in terms of "perception alteration".
That's why we see all those chocomoms cashing their welfare checks for Hershey bars and letting their kids starve.