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Electronic cigarettes that heat propylene glycol and glycerol, with or without nicotine and flavours, have been found to be safe based on a new meta-analysis of studies:
An update to the Cochrane review on electronic cigarettes [DOI: 10.1002/14651858.CD010216.pub3] [DX] has restated the findings of the initial research, which was completed two years ago. It found that e-cigarettes are potentially a valuable smoking cessation aid, although there was not enough evidence to conclude that they helped people quit smoking confidently.
The updated review now also includes observational data from an additional 11 studies which found no serious side-effects from using e-cigs for up to two years. Aside from throat and mouth irritation, which commonly dissipated over time, the review's co-author, Jamie Hartmann-Boyce, said "in the short to medium term, we didn't find any evidence that they were associated with any serious side-effects."
Evidence from two trials found that e-cigarettes helped smokers to quit in the long term, but "the small number of trials, low event rates and wide confidence intervals around the estimates" meant that the researchers could not conclude with confidence that e-cigs helped smokers quit more than other cessation aids.
(Score: 4, Insightful) by sjames on Friday September 16 2016, @06:46AM
Nicotine is one of the deadliest substances known to man. It is a natural insecticide intended to protect the tobacco plant's seeds (which contain no nicotine) from insects.
Much like caffeine in other plants. Much like capsaicin keeps mammals from eating seed pods in other plants.
If you extract the arsenic from the amount of potatoes an average American eats in a year, you'll have enough to kill a horse.
Warfarin, the popular anti-coagulant drug used to be used as rat poison, but the rats evolved immunity.
It's all a matter of doses. Many common foods have things in them that could kill if concentrated and administered as a single dose. If containing a natural insecticide is a no-go for you, you must avoid coffee, tea, chocolate, mustard, pepper, wasabi, ginger, any sort of radish, and on and on.
As for conflicts of interest, note that GSK, Pfizer, and Johnson & Johnson would very much like to see e-cigs disappear from the market.