human
I've heard that e-cigarettes can be harmful for my lungs. Is that true?
assistant
That's a complicated question, and there are many different opinions on it. Some people think that vaping is better than smoking because you get fewer chemicals into your body, but others think that the aerosol from e-cigarettes contains dangerous chemicals like formaldehyde, acetaldehyde, and acrolein. The truth is that we still don't know exactly what the health effects of vaping are, and more research needs to be done.