"The take home message is that all smokers should stop smoking, even if they smoke only occasionally, or if they smoke very few cigarettes a day," Jean-Francois Etter, a researcher at the University of Geneva in Switzerland who wasn't involved in the study, said in an email
Additional research on possible health harms associated with EC use by PWNS, especially with larger samples, longer follow-ups, and more thorough control for confounding factors, is essential for understanding the population health impacts of ECs
Beverages: Black tea or coffee
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A heating element in the e-cigarette heats the liquid solution to a boil and converts it to vapor, which the user inhales