Sadly, although the Surgeon General's report draws conclusions about the health impact of filtered cigarettes, it only cites one of these seven studies (the Luchtenborg study). And in citing that study, the report merely notes its finding that smoking increases colon cancer risk. It hides this study's finding that this increased colon cancer risk was only detected among smokers of non-filtered cigarettes!

While there is still a lot we do not know about the exact magnitude of any long-term risks associated with electronic cigarette use, vapers should be quite reassured that after at least five years of research into the health effects of vaping, the worst that electronic cigarette opponents can say is: "Well ... they're not harmless."

How can they sleep at night?

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