If the voltage of the battery is inconsistent, the heating element fires at a cold temp and then increases to a hot temperature and the vapor will also be inconsistent. Not usually a problem, unless your e-liquid only tastes good at one temperature.

"It is difficult to estimate the extent to which industry-generated research activities have influenced scientific thinking regarding the effects of nicotine on cognitive performance and on nicotine’s therapeutic applications. Authors’ industry affiliations and potential conflicts of interest reported in publications may go unnoticed by readers, may be difficult to identify, or may not be disclosed at all. Reviews and other articles citing industry-affiliated studies generally did not include author affiliations or potential conflicts of interest at all, leaving the readers unaware of possible industry influences."

This is not the way public health is supposed to be. But this is what happens when an abstinence-only mentality takes over in any area of public health, whether it be nicotine addiction or heroin addiction.

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