Epidemiology of smoking-induced cardiovascular disease
Smokers of these cigarettes were not the only ones at significant risk of developing lung cancer, mesothelioma, laryngeal cancer, ovarian cancer, or asbestosis
If he recognizes that a risk exists for certain users, he can try to modify his product, in order to render it as harmless as he knows how, or he can warn buyers of the nature of the risk, or he can withdraw the product from the market until its safety is firmly established
Withdrawal or keeping secrets from family and friends
Nicotine addiction can be powerful, and you might feel the urge to smoke if you're stressed out, around other smokers, out at a bar, or even just drinking your morning coffee