Jonathan Platt is a data analyst at the ISPH. His work at the ISPH focuses on tobacco use, other substance use and mental health. His research focuses on how social and biological changes during adolescence interact to cause mental illness, and the ways that gender affects socio-economic position and mental health throughout life. He has a specific interest in integrating social theory with methods for causal inference to study the mental health consequences of social stress and discrimination. Jonathan is a PhD candidate in Psychiatric Epidemiology at the Columbia University School of Public Health.