The advantages given to your heart and lungs by smoking cessation are well documented. In fact, most people already know and can probably recite the volume of stop smoking benefits available to them and yet, continue to smoke. Unfortunately, their addiction to nicotine will often overwhelm their capacity to act. Justification of the habit and denial that anything bad will happen, makes the promise of improved health seem cloudy and irrelevant. Or perhaps the smoker does see the advantages, but is willing to accept the risks and ignore the benefits of stopping smoking because they just enjoy it too much.
The only question that remains, is whether the smoker will take the path of least resistance or decide to quit. But remember, the smoker will immediately experience a healthier lifestyle on the very first day they stop smoking.