The real strong advocates that get in the political game and do a lot of work pushing back at the news and new laws\rules call vaping a 'harm reduction' strategy. That's all it is. Inhaling anything but pure clean air (if you can find some) into your lungs is probably harmful to your body, even if only slightly. The real comprehensive look at what this is doing to our bodies won't come for many, many years. Seriously, I think it pretty much compares to drinking diet sodas. Nobody even REALLY knows the long-term effects of all the sugar substitutes yet either. It's a layman's common sense gamble, and I've thought it a very good bet for all of my almost 4 years now. The only real cautionary tale I tell to others taking the gamble is to keep that eliquid way out of reach of pets and children, if they orally ingest a large enough quantity it can cause them serious damage or death.