Professor John Saunders is a consultant physician in internal medicine and addiction medicine, and is affiliated with the National Centre for Youth Substance Use Research. He has worked with the World Health Organization for over 40 years and amongst other work developed the AUDIT questionnaire.  He is the Founding and Emeritus Editor-in-Chief of the Drug and Alcohol Review, and Chair of the NSW/ACT Branch of the RACP Australasian Chapter of Addiction Medicine. In addition to his academic and research work, he has an extensive clinical practice in addictive disorders, including for the past 20 years, gaming disorder.