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Carbonyls in cigarette smoke are formed mainly by pyrolysis of tobacco sugars83, whereas those in e-cigarettes are formed mainly by thermal degradation of PG and/or VG83,84,85. Flavourings may also contribute to the formation of carbonyls, as well as the characteristics of the e-cigarette devices, especially the applied voltage, coil resistance and wicking material47,48,49,86,87. Poor wicking efficiency may lead to a dry wick and overheated e-liquid (dry puff), which promotes the formation of carbonyls and other toxic compounds2,10,13,15. Coil location, orientation, resistance and wick material, as well as power output, have been shown to affect carbonyl generation significantly13,15,86.

E-cigarettes hit the market in the early 2000s and have since soared in popularity, especially among teens and young adults. Once believed to be a "safer" way to smoke, vaping is now considered a public health crisis by many health groups. Stay up to date on the adverse health effects of smoking and vaping tobacco while gaining important guidance on how to counsel patients on the risks and quitting.

In our study, there were between-school differences, which appeared larger for girls than boys. In the univariate analyses, most school-level factors either increased or lowered susceptibility. This was especially the case among girls in S-EC and S-SN, and among boys in S-SM. In the multivariate models, most of the school-level associations were weakened.

E-cigarettes consist of a mouthpiece, an e-liquid chamber, an atomiser and a battery. The atomiser has a wicking material that draws the e-liquid onto a battery-powered heating coil. Optimal vapour production depends on an efficient supply of e-liquid to the heating coil, which is limited by the wicking and rate of e-liquid evaporation10,11,12. Power levels that produce aerosol beyond the ability of the wick to resupply the liquid to the coil may result in overheating of the atomizer coil and consequently overheating of the e-liquid10,11. Different types of wicking material, varying in size and shape, have been used in e-cigarettes3,13.

As with all rechargeable electrical devices, the correct charger should be used and the device should not be left charging unattended or overnight. There have been instances of e-cigarettes exploding or catching fire. A worldwide technology outage is causing disruption to some State of Illinois online systems.

It can damage your heart, arteries, and lungs, increasing the risk for heart attack, stroke, and chronic lung disease. E-cigarettes recently surpassed conventional cigarettes as the most commonly used tobacco product among youth.1 It is critical that public health officials and the general public understand the potential risks of using them. The FDA recently approved its first menthol-flavored electronic cigarettes for adult smokers. In contrast to the clear evidence that flavored products fueled the youth e-cigarette epidemic, every major U.S. public health authority – including the U.S. Preventive Services Task Force, the CDC and even the FDA itself – has found there is inadequate evidence to conclude that e-cigarettes are effective at helping smokers quit. E-cigarettes are battery-operated devices used for a type of smoking called vaping.

The most important points to know are that the long-term health effects of e-cigarettes are still unknown, and all tobacco products, including e-cigarettes, can pose health risks to the user. The tobacco industry has co-opted the term harm reduction to further its own interests of reduced tobacco product regulation and expand its user base. E-cigarette use among adults has been more stable, with adult use remaining relatively low since around 2012. Recent data, however, showed a slight uptick in adult e-cigarette use from 4.5% in 2021 to 6% in 2022. While switching completely from cigarettes to e-cigarettes can be less harmful than smoking, many adult smokers use e-cigarettes and cigarettes concurrently — increasing overall exposure to nicotine. Randomized control trials provide growing evidence that e-cigarettes with nicotine can increase quitting rates when compared to nicotine replacement therapies.

In the vaping liquids that contain nicotine, the level of nicotine can vary widely. Prior to July 2021 in Canada, vaping substance nicotine strengths ranged from 0 to over 60 mg/ml of nicotine. Since July 2021, the&nbsp