Hardening of the arteries can eventually lead to heart attack or stroke. Heart failure - Lung disease puts an additional strain on the heart and can cause heart failure. Heart attack - Recurrent heart attacks can occur if the smoker has other circulatory or heart diseases. One of the few legal substances available in stores that can injure or kill when used as intended. Most rational people know this as a fact, yet many continue to smoke.
Some smokers know, deep in their hearts, they want to quit.
Others are quite content to keep on puffing because they think they enjoy it so much. Well folks, I don't want to disillussion anybody, but it is because they are nicotine addicts. Cigarette smokers are just as much an addict as someone hooked on crack, cocaine, morphine or heroin. The folks that say they don't want to quit, because of the pleasure they derive from smoking, are not really speaking for themselves. It is their addiction speaking for them.