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09 February 2017, 12:42 | Elizabeth Houston
One-quarter of US teen e-cigarette users have experimented with "dripping" - a new vaping method that produces thicker clouds of vapor, researchers report.
Researchers at Yale University surveyed more than 7,000 teens at eight CT high schools and found that among the 1,080 who report vaping with e-cigarettes, 26% admitted to having tried so-called "dripping" for reasons that include "a stronger throat hit" or "made flavors taste better".
Vaping and smoking cigarettes are both bad habits that can lead to health problems.
A new study focused on the way teens use e-cigarettes.
Dr. Krishnan-Sarin says many kids who are vaping are not smokers.
But dripping the liquid directly on the coils generates far higher temperatures than traditional vaping, leading to greater emissions of harmful chemicals like formaldehyde, acetaldehyde and acetone.
CT law makes it illegal for minors to buy or possess e-cigarettes, but as the Yale study shows, many have found ways around that.
People who drip say it tastes better and produces a thicker cloud of vapor, but it also increases the amount of nicotine and unsafe chemicals like formaldehyde.
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And they called for regulators to consider imposing restrictions to make it impossible to modify e-cigarettes for uses like dripping.
Researchers have found though, that higher coil temperatures associated with dripping emit more harmful chemicals.
"The risks of short term and long term use of e-cigarettes are not known", Krishnan-Sarin said by email. Liquids used in these vaping products contain different levels of nicotine, and dripping means teens are exposed to higher levels of it. Krishnan-Sarin noted, "The teen brain has been shown especially sensitive to nicotine".
Sixty-four per cent of the teens admitted they tried dripping to get thicker clouds of vapour so they could pull off smoke tricks.
Newer e-cigarette devices make dripping unnecessary, Polosa said.
"At the end of the day, I don't think they serve any kind of objective".
The U.S. Food and Drug Administration announced its intention to regulate e-cigarettes as tobacco products, but hasn't yet rolled out its new rules. "It's a lot of the "do-it-yourself" type guys that are into this". "No", he said. Story, who was not involved in the study, believes there will always be an extreme group that uses any product, including e-cigarettes, in alternative ways.
"I didn't know what to expect", Krishnan-Sarin said.
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