http://tobaccocontrolbeta.bmj.com/content/early/2016/09/15/tobaccocontrol-2016-053205
It's not the best designed study I've ever seen but the tl;dr is that some flavourings (coffee and strawberry in this study) and increased voltage (4.0 and above) decrease cell viability. They didn't bother to work out what actual compounds increase toxicity, though. One of those studies the media would love to jump all over.
It's not the best designed study I've ever seen but the tl;dr is that some flavourings (coffee and strawberry in this study) and increased voltage (4.0 and above) decrease cell viability. They didn't bother to work out what actual compounds increase toxicity, though. One of those studies the media would love to jump all over.