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However, due to the small number of studies and lack of data on long-term nicotine-containing electronic cigarette usage usage over more than two years questions remain about long-term effects. The researchers conclude that more evidence, particularly about the effects of newer e-cigarettes with better nicotine delivery than earlier ones, is needed to assist more people quit smoking

The side effects of NRT tend to be mild, however if youre worried you should talk to your GP

Many have comorbidities that influence smoking behavior

At present, the FDA functions in the vape market as if it is indifferent to the illicit market and uninterested in whether Americans are smoking