None of us want to give up smoking though we are afraid of its consequences. Some bristle being called addicts, but undoubtedly tobacco is physically addicting, and we ingest those properties quite regularly. My opinion is that it is just as psychically addicting, perhaps more. One post says we're all doomed in one way or another, so why not court doom by smoking. If true such dalliance cannot override the biological imperative to survive as long as possible and supposes a choice of our doom by pipesmoking; a rational choice to die by that addiction sooner rather than later, should that destiny be. But in my opinion we continue to smoke through hope rooted in denial that some horrible death by cancer, etc., won't happen to us or that we will pass painlessly by a blessed MI.
Denial is the big stick of defenses, so powerful that we have no awareness of what was just vaporized out of consciousness, so powerful that most deny they deny.
I couldn't prove any of this; this is true for me but perhaps not you.