According to a U.S. today article "one in four High School teens who have used E-Cigarettes have also tried a new vaping method called "dripping" which is dropping E-Cigarette liquid directly onto hot coils of the device to produce a more flavorful smoke".
E-cigarette liquids can contain varying levels of nicotine, and dripping could expose teens to higher levels of the drug, the study states.
For the past decade, public health experts have debated whether the gadgets might help with smoking cessation or at least be a safer alternative to traditional combustible cigarettes, or whether "vaping" e-cigarettes or vape pens might lure a new generation into nicotine addiction.
E-cigarettes are battery-operated devices that people use in lieu of tobacco cigarettes. Certain factors contributed to an increase in "dripping" activity, such as being male, white, having tried out more tobacco products and having used e-cigarettes frequently in the recent past.
It surveyed 7,045 CT high school students, and found that 1,080 had used e-cigarettes.
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.
And they called for regulators to consider imposing restrictions to make it impossible to modify e-cigarettes for uses like dripping. The study notes that dripping for these stronger sensations may indicate dripped e-cigarette users are also using nicotine, though researchers did not specifically ask whether they were dripping e-liquid containing nicotine.
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Researchers have found though, that higher coil temperatures associated with dripping emit more harmful chemicals. One of the primary concerns about e-cigarette use in teens is increased exposure to nicotine, Krishnan-Sarin said.
Sixty-four per cent of the teens admitted they tried dripping to get thicker clouds of vapour so they could pull off smoke tricks.
Research has warned the devices are offering youngsters a "gateway to smoking", encouraging a whole new generation of tobacco smokers.
"At the end of the day, I don't think they serve any kind of goal".
Due to the many health concerns regarding vaping, the FDA has chose to regulate e-cigarettes the same way it does conventional tobacco products, though the new rules have yet to be released. Users believe they can detect when conditions have shifted by a change in flavor, he explained, but by the time they "taste the difference, they very likely have already been exposed to much higher levels of these toxicants" than would have happened under conventional e-cig use.
But a new set of experiments performed in the United Kingdom have shown lung tissue is barely affected at all by e-cigarettes - compared to the crippling affect cigarette smoke has one our organs.
Krishnan-Sarin agrees: "What I always tell parents is that we know very little, I think, about the short and long-term effects of e-cigarettes".