I’m a Clinical Assistant Professor within the Department of Public Health, Environments & Society at the London School of Hygiene and Tropical Medicine (LSHTM) and a Consultant in Public Health. After several years working at the Department of Health and Cabinet Office, I trained in public health within London before joining LSHTM. My PhD examined influences on the attendance of e-cigarette users at local stop smoking services, before I co-led an SPHR study focused on secondary school culture and pupil mental health in London. More recently, I have been involved in an NIHR project to systematically review evidence for the impact on public mental health of six major industries (tobacco, social media, alcohol, gambling, ultra-processed foods and fossil fuels) and undertaken an NIHR Three Schools fellowship examining specific influences on adolescent mental health from the social media and vaping industries.