Health impact of E-cigarettes: a prospective 3.5-year study of regular daily users who have never smoked

The emergence of e-cigs is a boon for smokers and also complexes them as well. Until now, there is a concern that whether using e-cigs is harmful to human beings or not. According to this report after conducting a test, it concludes: In a small sample of young-adult never-smoking, daily EC users who were carefully followed for approximately 3½ years, we found no decrements in spirometric indices, development of respiratory symptoms, changes in markers of lung inflammation in exhaled air or findings of early lung damage on HRCT, when compared with a carefully matched group of never-smoking non-EC users. Even the heaviest EC users failed to exhibit any evidence of emerging lung injury as reflected in these physiologic, clinical or inflammatory measures. Moreover, no changes were noted in blood pressure or heart rate. Since the EC users who we studied were never smokers, potential confounding by inhalation of combustion products of tobacco were obviated.

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