It ensures the liquid is thin enough to wick quickly into the small coils used in disposables, preventing "dry hits" (the burnt taste that occurs when the wick isn't saturated)
To the benefit of Canadians, in the 1980s Health Canada eventually abandoned its hopes that lower tar cigarettes would save lives and that it could motivate companies to market their products in ways which reduced harm
McCloskey, Alternatives to Estrogen for the Treatment of Hot Flashes, Annals ofPharmacotherapy, July 1997;31(7 8):91517
The study, published today in JAMA Network Open, found that young people with more symptoms of ADHD, like forgetfulness, inattention, and impulsivity, had significantly higher odds of using e-cigarettes, cigarettes, or other tobacco products during the nine years they were tracked