When students take their final exam in my course, they are all experiencing acute effects on their respiratory tracts. In fact, if you were to measured their exhaled nitric oxide levels, you would find that there is a significant reduction, just as is observed with smoking.

• The truth is that the study only measured ever use of electronic cigarettes, not current use, regular use, or addiction to nicotine. Thus, it could not determine whether the kids who had tried electronic cigarettes ever used them again. So it could not tell if these kids were addicted to nicotine. They may have simply tried an electronic cigarette and not vaped again.

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