There is plenty of evidence that low level nicotine use prevents brain deterioration, dementia, etc. in older folks.
They sell the juice with 0% nicotine. That’s what I use when I miss the ritual and want something in my lungs with a beer or being around folks who still burn like a human being. For me, it helps a lot with the phycology of the habitual ritual of smoking. The nice thing about it is since no nicotine, I don’t crave this faggoty vape thing, I just use it when I need to cut the edge.
Freegards