True, but not many. Coronary heart disease is very uncommon in people who have no risk factors. The risk factors listed above account for the vast majority of cases of coronary heart disease. Smokers often know of someone who "smoked all his life and lived to a ripe old age!" Maybe so, but he (or she) may have had a bad chest with bronchitis and emphysema and may have died from his lung problems or cancer of the lung or another part of the body, before dying from a heart attack. Most smokers know that if they continue, it will catch up with them sooner than they would like.
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