I've been vaping about 3 years. Over that time there have been a few BS 'science' articles every month about the supposed health risks of vaping. None of them have held up to scrutiny.
In your example, JJbum, the article discusses three unpublished abstracts to an AAAS conference. We don't know the details of methodology, the exact results obtained or how significant they are.
We do know that one of the abstracts cites 'anecdotal evidence' and lumps vaping in with hookah use to conclude that 'alternative tobacco products' are 'just as dangerous to your health as cigarettes'. It also relies on studying small changes in mouse brains to make statements about human mental health and behaviour.
We know that another abstract builds on already discredited research around formaldehyde and acrolein levels in ecigs. We have no idea whether the researchers made the same mistake of overheating the coils to a level that no human vaper could withstand, because they used mice. The abstract also talks about the acute cardiovascular effects of nicotine. These are well known, are similar to the effects of caffeine and have little relevence to long term outcomes.
The third abstract is from a study analysing the snot of vapers who use cinnamon flavours. It concludes that there are biomarkers for reduced immune response. That one is interesting because it at least uses human subjects. Whether changes in snot translate to actual changes in people's susceptibility to disease is another matter. I can't find any real-world evidence of vapers falling ill more frequently, in fact the vast majority enjoy much improved health because they have stopped or cut down smoking. If the findings hold up when the study is published and peer reviewed it could lead to industry making changes to eliquid recipes, such as we saw in response to Farsalinos's research on aldehydes. It could also lead to sensible advice like not using cinnamon for your all-day-vape. That's not such a headline grabber though is it?
Whenever junk science like this is published, hyped up in press releases and the media and then shared uncritically, more smokers come to the conclusion they're better off staying on the fags. We know half of them will die early unless they manage to quit.
PHE again:
There has been an overall shift towards the inaccurate perception of EC being as harmful as cigarettes over the last year in contrast to the current expert estimate that using EC is around 95% safer than smoking.
Clear and accurate information on relative harm of nicotine, EC and tobacco cigarettes is needed urgently