Jayden, vaping is NOT "unhealthy"...any more so than drinking coffee.  I did tons of research, and visited literally 50 or more webpages discussing the issues surrounding the e-cig.  All studies show that, yes, nicotine is a "drug"...of the SAME class as caffeine.  I am sure this Dr is not and would never, push for non-smokers to start the e-cig, but thank God he realizes that we smokers (former smokers, sorry!) are a bullheaded bunch, and we HAVE TO replace cigarettes with something.  That is human psychology at it's heart...it's just a fact.  Some quitter replace cigs with food, some with alcohol, some with nail biting, biting pens, jingling keys incessantly etc etc, which, by the way, most often results in a return to smoking.  This Dr realizes that the e-cig is a permanent alternate possibility for smokers.  I say yay and God bless him!  Thanks.