E cigarettes may double success rates for those quitting smoking UCL News UCL University College London The History Of ECigs International ECIGS International Stop Smoking and Quit E Cigarettes Audiobook by Allen Carr World 'No Tobacco' Day let's look at vaping versus smoking If you're trying to quit smoking, vaping should not be the first thing you try. E cigarettes can contain more addictive nicotine than cigarettes and the long term health effects of e cigarettes are unknown.