Yep. Cigarettes are physically addictive. Been there, done that, bought the T-shirt and wore it out.
They make you smell bad, they make your walls and teeth yellow and they clog up your lungs. And in this day and age they COST almost as much as cels... lordy, I can't get over the price.
20 years smoke-free, thank goodness.
(But I still voted for cels

)