Marcus Lewton
Marcus Lewton is a child and adolescent clinical psychologist based in the UK. His work in independent practice and public services focuses on a wide range of adolescent mental health issues, with a specialist interest in intrusive thoughts and OCD. He is the author of Intrusive Thoughts and Compulsions in Adolescent OCD: A Psychoanalytic Framework for Treatment (2026).
When Your Teenager's Mind Gets Loud: Understanding Intrusive Thoughts and OCD in Adolescents, and How You Can Help
When Your Teenager’s Mind Gets Loud is a compassionate and practical guide for parents navigating the challenges of adolescent obsessive-compulsive disorder (OCD). Clinical psychologist Marcus Lewton... (more)