Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica E Cigs Are Still Flooding the US, Addicting Teens With Higher Nicotine Doses KFF Health News Primary health effects from smoking. Figure 1 used with permission from Download Scientific Diagram CDC Advises Public Not to Use E Cigarettes Electronic cigarettes use and 'dual use' among the youth in 75 countries: estimates from Global Youth Tobacco Surveys (20142019) Scientific Reports