E Cigarettes and Vaping OHSU Electronic Nicotine Delivery Systems (ENDS), including e cigarettes and vapes, are often perceived as a safer alternative to traditional tobacco. But is the evidence really supporting this belief? A recent umbrella review published Psychiatry.org E Cigarettes and Vaping E Cigarettes and Pregnancy Maternal Infant Health CDC Health effects of electronic cigarettes Wikipedia Full article: Disposable electronic cigarettes chemical composition and health effects of their use. A systematic review