human
I've been hearing a lot about the dangers of e-cigarettes. Should I be worried about them?
assistant
Yes, you should be concerned about e-cigarettes because they contain nicotine and are not regulated by the FDA. Nicotine is highly addictive and can cause many harmful health effects if used frequently or in high doses. It's best to avoid using any kind of tobacco product, including e-cigarettes, and seek help for quitting smoking.