The rest of the story is that this assertion by the FDA - that cigarette smoking may be no more hazardous than vaping - appears to be more politically-based than science-based. President Obama, in his inaugural address, called for a return of science to public policy. He asked that science be restored to its rightful place. However, the assertion that cigarette smoking is not known to be any more harmful than inhaling the aerosol produced by heating a solution of nicotine and propylene glycol is hardly something that can be viewed as science-based. Especially when e-cigarette vapor has been extensively characterized and shown to be far less toxic than cigarette smoke.

The Rest of the Story

In the article, Joe Keohane writes:

It is difficult enough for youth to initiate cigarette smoking because of the harsh taste of the smoke. This is precisely why menthol cigarettes are so popular among youth. Menthol acts as an anaesthetic which makes it easier for a new smoker to tolerate the harsh taste. For smokeless tobacco products, adding flavorings appears to make these products more appealing to youth, probably for this very reason.

The finding of reduced exhaled nitric oxide is an indication that an exposure is causing some sort of inflammatory effect on cells lining the respiratory tract. It doesn't mean anything more or less than that. You can't take two exposures - each of which causes respiratory tract inflammation - and make the statement that the effects of both exposures are equal. Risk posed by an exposure depends on many other factors, including the degree of inflammation induced, the reversibility of the effect, the nature of the exposure, the chronicity of the exposure, etc.

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