ADDICTIVE DISORDERS: Edited by John B. Saunders and Linda B. CottlerWorld vaping updateStriley, Catherine W.; Nutley, Sara K.Author Information Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, University of Florida, Gainesville, Florida, USA Correspondence to Catherine W. Striley, PhD, MSW, MPE, Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, Campus Box 100231, University of Florida, Gainesville, FL 32610-0231, USA. Tel: +1 352 273 5359; fax: +1 352 273 5365; e-mail: [email protected] Current Opinion in Psychiatry: July 2020 - Volume 33 - Issue 4 - p 360-368 doi: 10.1097/YCO.0000000000000617 Buy Metrics Abstract Purpose of review Although death and injury related to e-cigarette use and vaping products has decreased since the peak in 2019, concern over the popularity of electronic nicotine delivery systems (ENDS – a term which includes vape pens, electronic or e-cigarettes, and products that produce vapor for inhaling rather than combusting to produce smoke) continues. ENDS are used as an aid to quit smoking and for harm reduction. Recent findings This review covers peer-reviewed literature from January 2019 through February 2020 on vaping (the process of using ENDS). Prevalence, risk factors for use, and health risks and benefits from use predominated. Policy articles, commentaries and editorials were excluded from review. E-cigarette or vaping product use-associated lung injury (EVALI)-related injury and death were in the news and literature this year. Because most EVALI-related injury and death occurred among young people who had vaped tetrahydrocannabinol (THC), data from the Healthy Minds (United States) study are reviewed to consider variation in risk factors for vaping THC compared with nicotine. Summary Findings provide up-to-date information on vaping as a way to consume a drug, whether THC or nicotine. Harm reduction benefits were shown in a year-long follow-up of smoking cessation; harms continue to accumulate, including from passive consumption. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.