E cigarette flavors are toxic to white blood cells, warn scientists The dangers of vaping Baylor College of Medicine Blog Network In recent years, the number of e cigarette users worldwide has sharply increased, with many believing that vaping is less harmful than smoking traditional cigarettes. However, health experts are warning of its negative MOH: Generation Smoking Ban Also Covers Vape, E Cigarettes CodeBlue E Cigarettes and Their Use in the U.S. and Kansas Kansas Health Institute CDC: E cigarettes a growing health concern