Abdul Cadri, PhD candidate at the Department of Family Medicine, wins the prestigious IDRC International Doctoral Research Award – one of 24 awardees across Canada. This award seeks to strengthen the capacities of emerging researchers at Canadian universities, growing the cohort of researchers able to design, lead and carry out high quality research that contributes to the Sustainable Development. Supervised by Alayne Adams and Tibor Schuster, his research explores the role and potential of social networks in preventing harmful substance use among young people in his home country of Ghana. Applying a mixed methods approach, Abdul will investigate the relationship between social networks and substance use among senior secondary students and how they might be leveraged for prevention and mitigation. Together with youth and key stakeholders, he hopes to co-develop a framework to guide school-based substance use prevention interventions efforts that incorporate social network effects.