Whether e-cigarette use precedes smoking or smoking precedes e-cigarette use is a critical question, but it is one which needs to be answered through longitudinal research. We need studies that follow the trajectory of teen tobacco/e-cigarette use over time. That is the only way to determine which comes first.
The Rest of the Story
Frankly, as I predicted prior to the enactment of the Family Smoking Prevention and Tobacco Control Act, the FDA's regulation of tobacco products is a national public health embarrassment.
My Step-Dad told me about e-cigarettes and how they helped him quit, and he has tried repeatedly to quit smoking to. So i decided to try one and see if it was worth it.
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