Global Drug Survey 2017: Reducing substance-induced harm

The Global Drug Survey is the largest of its kind in the world. It's independently run by a group of researchers and academics, and averages around 100,000 participants each year. The survey produces reports for global media and public health organisations, using their data and expertise to create digital health applications that deliver screening and brief interventions for drugs and alcohol, as well as creating free online harm reduction resources and anonymous, confidential self-assessment tools. Pearl speaks to Adam Winstock, a London based consultant psychiatrist, addiction medicine specialist and founder of the Global Drug Survey, about this year's survey and what they hope to achieve.