bollox! nicotene is a superb simulant and studies have shown it enhances the thought process immensly - not to mention keeping you awake!
its the other crap in cigs that kills ya!
only after the stroke/heart attack/ and incapacitation due to emphysema/complications ect. will the observing not be so good maybe
oh and the long term damage to sight thru macular degeneration ect. of course, but gazz is right the his particular poison will loosen/slacken the walls of the capillaries to allow much greater blood flow (red eyes) and reverse the effects of the cigs!