It is one of the first substances to which young people become addicted, and it contains thousands of chemicals that are dangerous to smokers and to those who are simply in the proximity of the smoke
[21] But e-cigarette users may "learn" to overcome the unpleasant taste due to elevated aldehyde formation, when the nicotine craving is high enough
Their uptake is attributed to aggressive marketing, portraying vaping as a healthier alternative to smoking, with multiple flavours, sleek device designs, varying nicotine levels, disposable/refillable e-liquid systems, and rechargeable batteries
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However, there is moderate evidence that more frequent e-cigarette use is associated with a reduction in smoking or quitting cigarettes