E cigarette use and respiratory symptoms in adults: A systematic review and meta analysis The impact of e cigarette exposure on different organ systems: A review of recent evidence and future perspectives ScienceDirect E cigarettes might harm lung tissue much like regular cigarettes do whether they contain nicotine or not a new study says. The World Health Organisation's (WHO) first global estimate on e cigarette use reveals an alarming trend adolescents are nine times more likely to vape than adults. Designed by: @esha_attreya #upsc #upscprelims #upscpreparation #