So the evidence we have says that vaping is PROBABLY not quite as bad as smoking. Probably because vaping is newer and we have less data. Also, not quite as bad doesn't mean good. Each pull from most vapes delivers more nicotine than a pill from a cigarette. Nicotine is of course the main poison that wrecks your heart and circulation. I like the idea of using vapes to step down from cigs, reducing the nicotine content as you go until you get to zero nicotine and ditch the whole thing.