Why E Cigarettes may Not Help Quit Smoking: Study E cigarettes can help people quit smoking but may be gateway for non smokers, studies suggest ABC News We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact New medication may become first FDA approved treatment for quitting vaping