... the Food and Drug Administration (FDA).

Electronic cigarettes, on the other hand, have a clean and cool hit that is soft on the lungs and is designed to satisfy your nicotine cravings, not your cravings for smoke.

The communications director for another national anti-smoking group added: "This just goes to show that the tobacco companies have not changed. They will go to any extent to keep America's children smoking, even paying university scientists to do their dirty work for them."

What the study did show was subclinical evidence of impaired lung function, meaning that the observed (measurable) lung function was unchanged, but that there was evidence of physiologic effects consistent with some bronchial inflammation. What is not known is whether this acute bronchial inflammation has any significance in the long-term. The presence of bronchial inflammation may be a result of propylene glycol having a respiratory irritant effect. But this does not necessarily mean that long-term exposure would lead to any adverse effect on lung function. More research is necessary to clarify that point.

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