April 19, 2005 (Press Release) --
How are the health risks associated with cigar smoking different from those associated with smoking cigarettes?
Health risks associated with both cigars and cigarettes are strongly linked to the degree of smoke exposure. Since smoke from cigars and cigarettes are composed of many of the same toxic and carcinogenic (cancer causing) compounds, the differences in health risks appear to be related to differences in daily use and level of inhalation.
Most cigarette smokers smoke every day and inhale. In contrast, as many as three-quarters of cigar smokers smoke only occasionally, and the majority do not inhale.
All cigar and cigarette smokers, whether or not they inhale, directly expose the lips, mouth, tongue, throat, and larynx to smoke and its carcinogens. Holding an unlit cigar between the lips also exposes these areas to carcinogens. In addition, when saliva containing smoke constituents is swallowed, the esophagus is exposed to carcinogens. These exposures probably account for the fact that oral and esophageal cancer risks are similar among cigar smokers and cigarette smokers.
Cancer of the larynx occurs at lower rates among cigar smokers who do not inhale than among cigarette smokers. Lung cancer risk among daily cigar smokers who do not inhale is double that of nonsmokers, but significantly less than the risk for cigarette smokers. However, the lung cancer risk from moderately inhaling smoke from five cigars a day is comparable to the risk from smoking up to one pack of cigarettes a day.
Health risks associated with both cigars and cigarettes are strongly linked to the degree of smoke exposure. Since smoke from cigars and cigarettes are composed of many of the same toxic and carcinogenic (cancer causing) compounds, the differences in health risks appear to be related to differences in daily use and level of inhalation.
Most cigarette smokers smoke every day and inhale. In contrast, as many as three-quarters of cigar smokers smoke only occasionally, and the majority do not inhale.
All cigar and cigarette smokers, whether or not they inhale, directly expose the lips, mouth, tongue, throat, and larynx to smoke and its carcinogens. Holding an unlit cigar between the lips also exposes these areas to carcinogens. In addition, when saliva containing smoke constituents is swallowed, the esophagus is exposed to carcinogens. These exposures probably account for the fact that oral and esophageal cancer risks are similar among cigar smokers and cigarette smokers.
Cancer of the larynx occurs at lower rates among cigar smokers who do not inhale than among cigarette smokers. Lung cancer risk among daily cigar smokers who do not inhale is double that of nonsmokers, but significantly less than the risk for cigarette smokers. However, the lung cancer risk from moderately inhaling smoke from five cigars a day is comparable to the risk from smoking up to one pack of cigarettes a day.

How are the health risks associated with cigar smoking different from those associated with smoking cigarettes?
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