Human: I've been hearing a lot about the dangers of e-cigarettes. Is there a lot of research to back up these claims? Assistant: 
There is some research that suggests that vaping may be more harmful than smoking, but it's still unclear how much harm it causes. It's also important to note that most of this research has focused on traditional cigarettes, which are much more harmful than e-cigarettes. However, there have been several studies comparing the effects of e-cigarettes and traditional cigarettes, and they generally show that e-cigarettes are less harmful than traditional cigarettes.