"Dripping" involves putting drops of e-liquid directly onto the exposed heating coil of an e-cigarette or atomizer.
A man smokes an e-cigarette at the V-Revolution E-Cigarette shop in London, England, Aug. 27, 2014.
E-cigarettes heat liquid and turn it into vapor, which a user inhales and then exhales in a large puffy cloud. The teens were asked if they'd ever tried e-cigarettes and dripping, and what their reasons were for the usage. "When e-liquids are heated at high temperatures, like with dripping, they can produce high levels of carcinogenic compounds".
"This study is the first systematic evaluation of the use of dripping among teens", said Suchitra Krishnan-Sarin, a professor in the department of psychiatry at the Yale University School of Medicine and the lead author of the study.
Ray Story, CEO of Tobacco Vapor Electronic Cigarette Association, said the segment of e-cig users who drip is just a sliver of users, and he discouraged people from turning to dripping as a vaping method.
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Dripping produces thicker clouds of vapor, gives a stronger sensation in the throat and makes flavors taste better, according to a study, published Monday in the journal Pediatrics. E-cigarette liquids typically contain nicotine, which is absorbed rapidly through human skin. Forty per cent said they dripped to get a better flavour and 22 per cent tried it out of sheer curiosity. The study did not assess if the students added nicotine to the e-liquids used for dripping, or how frequently e-cigarettes were used for dripping, Science Daily reported. Krishnan-Sarin said a variety of vapor patterns can be produced with thicker clouds, such as "tornadoes and rings". This new technique is called dripping.
"At the end of the day, I don't think they serve any kind of objective". By 2014, e-cigarettes had surpassed traditional cigarettes as the most commonly used tobacco product among middle school and high school students, according to a survey by the Centers for Disease Control and Prevention. "It's a lot of the "do-it-yourself" type guys that are into this".
In August, the Food and Drug Administration began regulating all tobacco products, including e-cigarettes, prohibiting sales to youths under the age of 18. This was showed that more than 20% of them use an alternative vaping technique that can be even more risky.
This changes the way e-cigarettes work.
Krishnan-Sarin, however, said more research is needed on the long- and short-term effects of e-cigarettes.