If you smoke you're an idiot and if you don't try to quit you're a bigger one.
My parents both smoked. My dad quit cold Turkey at 54 after he had a heart attack. None of this gum or patch or other shit. He just quit. My mom did a few years later. For my dad the damage was done. He eventually died of cancer.
It's a filthy disgusting habit. Thank God it has been banned in most public places.