CDC Report Warns E Cigarettes Are Causing Smoking Rates To Increase In The U.S. Tobacco 21 Increased e cigarette use prevalence is associated with decreased smoking prevalence among US adults Harm Reduction Journal Springer Nature Link Primary health effects from smoking. Figure 1 used with permission from Download Scientific Diagram E Cigarettes (Vapes) Smoking and Tobacco Use CDC According to the CDC, There are no safe tobacco products, including e cigarettes. E cigarettes should not be used by youth, young adults, or people who are pregnant. Adults who have never smoked or