Care to share the source of this research?
I am especially interested in the "long-term vaping is dangerous to your health."
It would be terribly difficult to do that on product that hasn't existed long-term.
I don't think vaping is healthy, but used correctly for the purpose it was created, it can be a very valuable tool.
I smoked for 40 years, just couldn't stop. Stopped smoking and switched to vaping. Vaped only nicotine, no flavours.
Then I stopped vaping without any problems after a few years.
You should be able to vape if you do it so stop smoking and with a doctor's prescription only.