human
I've been hearing a lot about the dangers of e-cigarettes. What are they and should I be concerned about them?
assistant
E-cigarettes are devices that use battery-powered heating coils to vaporize nicotine solution, creating an inhalable aerosol that contains nicotine and other chemicals. They're often marketed as a safer alternative to smoking traditional cigarettes because they don't produce smoke or ash, but some experts believe they may still pose health risks due to their unknown ingredients and potential for abuse.