According to the Harm Reduction Journal , the toxicity levels of e-cigarettes detected by the FDA are highly unlikely to have any possible significance to users because the unhealthy chemicals detected in e-cigarettes are at about one million times lower concentrations than are conceivably related to human health. This conclusion is shared by other researchers, including professor Michael Siegel of the Boston University School of Public Health (pdf)
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Following the biological clues Although direct evidence remains limited, several biological pathways suggest that an association is plausible
And if you ever think you could run into scrapes on your trips, I advise you to bring along a few packs of smokes, just in case
