Correct Chris000. I don't know how many people I have met who said they stopped smoking to go to vaping. Back in the 40s, smoking was considered a healthy thing to do. Now people are go vapes because it's "less unhealthy" than smoking.
Yeah, well, it's probably being replaced by vaping and whacky tobakky. While vaping, you're inhaling nicotine, in most cases, and you're also coating the lungs with an oil that has its own set of chemicals. I can't imagine that long-term vaping is gonna end up being reported as still harmless, and a safe alternative. Safer, perhaps, but that's about it. As for MJ, hey, that's like inhaling cigar smoke, and what makes it even worse, aside from its own chemicals, and mind altering properties, is they let it soak the lungs as long as possible before exhaling...double trouble.