What are e-cigarettes? E-cigarettes are the most common form of electronic nicotine delivery systems (ENDS) and electronic non-nicotine delivery systems (ENNDS) but there are others, such as e-cigars, e-pipes, e-shishas, etc.  ENDS heat a liquid to create an aerosol that typically contains nicotine, which is inhaled by the user. The aerosols also contain other toxic […]