E-Cigarettes & E-Hookahs
Electronic cigarettes (e-cigarettes) and electronic hookahs (e-hookahs) allow the user to inhale a vapor that may contain nicotine as well as other flavors and chemicals. Many e-cigarettes and hookahs look just like real cigarettes or pipes. But some look like pens or USB memory sticks. Not much is known yet about the benefits and risks of these products.
How they work
There are many types of e-cigarettes and e-hookahs. Most have a battery-operated heating device. When you inhale, the heater turns on and heats a liquid cartridge into a vapor. The cartridge may contain nicotine or other flavors or chemicals. It also contains glycerol or propylene glycol (PEG), which looks like smoke when you exhale. Each cartridge can be used a few times. Cartridges come in many flavors.
The makers of e-cigarettes and e-hookahs market their products for several uses:
- To use as a safer alternative to tobacco products. The makers claim their products don't contain the harmful chemicals found in regular cigarettes. They say this makes their products safer choices for those who already smoke and don't want to quit.
- To "smoke" without getting addicted. Consumers can choose cartridges that don't contain nicotine, the addictive substance found in tobacco.
- To "smoke" in areas where smoking is banned. Since there are not yet bans against e-cigarettes in many places, these products allow smokers to "smoke" in smoke-free areas.
- To use as a tool to help you quit smoking. Some companies tout their products as a way to quit smoking. More studies are needed to prove this claim.
E-cigarettes have not been fully tested. So it is not yet known if any of these claims are true.
Health experts have many concerns about the safety of e-cigarettes and e-hookahs.
- There is no evidence that shows these products are safe to use over the long term.
- There are chemicals that can cause cancer in some of the products they tested. One sample contained a toxic ingredient found in antifreeze.
- The ingredients in e-cigarettes are not labeled, so it's not clear what's in them.
- It's not known how much nicotine is in each cartridge. The FDA found nicotine in one sample that was labeled nicotine-free.
- It is not known if these devices are a safe or effective way to quit smoking.
- Non-smokers may start using e-cigarettes because they believe these devices are safe.
E-cigarettes and children
Many experts also have concerns about the effects of these products on children.
- These products are sold in flavors that may appeal to children and teens, such as chocolate and key lime pie. This could lead to more nicotine addiction in children.
- Teens who use e-cigarettes may be more likely to take up smoking regular cigarettes.
More studies are needed
There is not enough information about e-cigarettes to know if they are safe or harmful. Until more is known about their long-term effects, the FDA and the American Cancer Association recommend steering clear of these devices.
If you are trying to quit smoking, your best bet is to use FDA-approved smoking cessation aids. These include:
- Nicotine gum
- Skin patches
- Nasal spray and oral inhaled products
When to call the doctor
If you need more help quitting, talk with your health care provider.
- American Cancer Society. E-cigarette Use Linked to Conventional Cigarette Smoking Among Adolescents. http://www.cancer.org/cancer/news/e-cigarette-use-linked-to-conventional-cigarette-smoking-among-adolescents. Accessed March 28, 2014.
- American Cancer Society. Restrict the Sale of Electronic Cigarettes. http://www.cancer.org/myacs/eastern/areahighlights/cancernynj-news-ny-ecig-health-vote. Accessed March 28, 2014.
- American Cancer Society. What About Electronic Cigarettes? Aren't they Safe?http://www.cancer.org/cancer/cancercauses/tobaccocancer/questionsaboutsmokingtobaccoandhealth/questions-about-smoking-tobacco-and-health-e-cigarettes. Updated February 13, 2014. Accessed March 28, 2014.
- Bullen, C. et al. Electronic cigarettes for smoking cessation: a randomized controlled trial. The Lancet. 2013;382(9905):1629-1637.
- Cancer Action Network. E-cigarettes: Are They Safe? Will They Help Smokers Quit? October 2010. http://acscan.org/content/wp-content/uploads/2010/10/e-cigarette.pdf. Accessed March 28, 2014.
- Dutra LM, Glantz SA. Electronic cigarettes and conventional cigarette use among U.S. adolescents: a cross-sectional study. JAMA Pediatrics. 2014;168(7):684.
- U.S. Food and Drug Administration. E-Cigarettes: Questions and Answers. http://www.fda.gov/forconsumers/consumerupdates/ucm225210.htm. Updated April 24, 2014. Accessed October 9, 2014.
- U.S. Food and Drug Administration. Electronic Cigarettes (e-Cigarettes). Updated January 2014. http://www.fda.gov/NewsEvents/PublicHealthFocus/ucm172906.htm. Updated August 11, 2014. Accessed October 9, 2014.
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