Hookah

Even though it has been around for centuries, hookah smoking is not a less harmful alternative to smoking cigarettes, according to the Centers for Disease Control and Prevention. Smoking tobacco in hookahs or other water pipes results in inhaling toxic chemicals, often at levels exceeding cigarette smoke, which may harm the heart and blood vessels, according to a new scientific statement published in the American Heart Association’s journal Circulation. 

Water pipes have many names - hookah, narghile, argileh, shisha and goza – and usually consist of a head or bowl that holds tobacco, a body, water base and hose that ends with a mouthpiece. Burning charcoal is placed on top of the tobacco-filled bowl. Hookah tobacco is usually a combination of dried fruit, flavored tobacco and substances to keep the tobacco moist.

During a hookah smoking session that typically last for 30 or more minutes, users inhale many liters of smoke filled with large quantities of particulate matter at higher concentrations than cigarettes.

The group-oriented nature of hookah smoking puts everyone present in line for negative health effects.

“The same mouthpiece is often shared by everyone in the group. Hookahs also have intricate parts that are hard to clean and sterilize. As a result, people who smoke hookah are at an increased risk for diseases like the common cold and influenza,” states a Missouri Partners in Prevention coalition piece on hookah smoking. Partners in Prevention is a substance abuse consortium comprised of 21 public and private college and university campuses across the state dedicated to creating healthy and safe college campuses. “The second-hand smoke from a hookah contains 4x the carcinogenic PAHs and 30x the carbon monoxide of a single cigarette. In fact, a typical one-hour hookah session generates as much second-hand smoke as 2-10 cigarette smokers.”

Although direct comparisons between hookahs and cigarettes have some limitations, a single session of hookah use typically results in greater exposure to carbon monoxide than a single cigarette. Even short-term exposure to carbon monoxide in hookahs is toxic and can interfere with exercise capacity, according to the statement authors.

In addition to carbon monoxide, hookah smoke contains other potentially harmful chemicals that can affect the cardiovascular system, including nicotine, air pollutants, particulate matter, volatile organic chemicals, polycyclic aromatic hydrocarbons, acrolein, lead, cadmium and arsenic. Most of these toxins are higher in hookah than cigarette smoke.

“Hookah smoke contains harmful substances and the American Heart Association strongly recommends avoiding the use of tobacco in any form,” said Aruni Bhatnagar, chair of the writing group for the statement and professor of medicine and director of the University of Louisville Diabetes and Obesity Center in Kentucky.

There is growing evidence that hookah tobacco smoking acutely impacts heart rate and blood pressure. Chronic use is associated with increased coronary artery disease risk.

“Many young people mistakenly believe that smoking tobacco from a hookah is less harmful than cigarette smoking because the tobacco if filtered through water, but there is no scientific evidence that supports that claim. However, there is evidence to suggest that hookah smoking is addictive and can lead to the use of other tobacco products such as cigarettes,” said Bhatnagar.

The spread of hookah smoking, especially among young people, is promoted by several factors, including sweetened and flavored hookah tobacco, social media that promotes this method of tobacco use and misperceptions regarding its addictive potential and adverse health effects.

Unlike cigarette tobacco, hookah tobacco, often colorfully packaged, can be sold in candy and fruit flavors, which appeal to younger audiences. The flavors and sweeteners added to the tobacco mask the harshness of smoke, making it easier to start and continue smoking hookahs.

In addition, because many people smoke hookah in lounges and cafes it is perceived to be a social activity and less habit-forming. More importantly, most of the tobacco marketed to hookah users does not carry a health warning, leading to the misperception that it is not harmful.

In the United States, recent surveys have estimated hookah usage that range from 4. 8 percent among high school students to 13.6 percent of young adults (18-24 years old). People 18-24 years of age also accounted for 55 percent of hookah smokers nationwide. In addition, those who use a hookah are more likely to start smoking cigarettes than those who have never smoked a hookah.

Currently, there is a persistent misperception among hookah users that this method of tobacco use is harmless. In contrast, many youth are more aware of the risks associated with cigarette smoking and avoid that method of tobacco use because of those risks.

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