Earlier quoted context omitted.
My father's been smoking for over 50 years. I got him to switch to mostly vaping last year. The difference in his health has been profound. It almost eliminated his coughing, increased his ability to walk distances. His doctor was amazed at his last checkup. She said she couldn't recommend it to patients due to the uncertainties, but encouraged him to keep doing whatever it is that he's doing. Edit: I bought him the…
Another benefit I've seen a number of times is that people seems to have an easier time quitting. (Based on my sample of The pattern, as explained to me and IIRC, was as follows: Started vaping insteadof smoking. Tried vape with less nicotine. Worked equally well. Tried with half strength. Tried with even less. Also worked. At this point it just felt silly so they just stopped. (Note that these where young people.)
A proven strategy.