
A new study has shown that smoking tobacco through a waterpipe exposes the user to the same
toxicants - carbon monoxide and nicotine - as puffing on a cigarette, which could lead to
nicotine addiction and heart disease.
Buzz up!
The belief among some waterpipe users is that this method of smoking tobacco delivers less
tar and nicotine than regular cigarette smoking
and has fewer adverse health effects.
However, the new study led by a Virginia Commonwealth University researcher has challenged
this belief.
"The results are important because they provide concrete, scientific evidence that
contradicts the oft-repeated myth that waterpipe tobacco smoking does not involve users
inhaling the same harmful chemicals that cigarette smokers do," said principal investigator
Thomas Eissenberg, Ph.D., professor in the VCU Department of Psychology.
"We hope that these results will be used by physicians and public health officials to inform
waterpipe tobacco smokers that they risk tobacco-induced nicotine addiction and
cardiovascular disease," he added.
Eissenberg along with Alan Shihadeh, Sc.D., associate professor at the American University
of Beirut in Lebanon, compared the toxicant exposure associated with waterpipe smoking and
cigarette smoking among 31 participants between the ages of 18 and 50.
Each participant completed two 45-minute sessions, one in which they smoked tobacco using a
waterpipe and the other in which they smoked a single cigarette. The level of nicotine and
carbon monoxide in the participants' blood was measured, as was heart rate, puff number and
puff volume.
They found that on average, the levels of carbon monoxide to which participants were exposed
were higher when they were smoking a waterpipe than when they were smoking a cigarette.
Specifically, the peak waterpipe COHb level - amount of carbon monoxide found bound to red
blood cells - was three times that observed for cigarette.
However, they observed that the peak nicotine levels did not differ - but there was exposure
to nicotine through both methods of tobacco smoke.
Examining the number and volume of each puff showed that compared with smoking a cigarette,
waterpipe tobacco smoking involved inhalation of about 48 times more smoke.
The study has been published in the December issue of the American Journal of Preventive
Medicine.
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