This book goes beyond the surface-level “just say no” approach, offering deep insights into the real reasons young people may turn to harmful substances and exploring the complex factors - such as coping with trauma, mental health struggles or feelings of inadequacy - that influence these decisions.

Timely and relevant for all educators teaching PSHE in secondary school, the book provides practical teaching tips, safeguarding guidance and strategies for creating a supportive and inclusive classroom, as well as informative and engaging lesson plans that empower students to make healthier and more informed choices. Supporting a spiral curriculum, it integrates subjects including mental health, science, English and maths, offering a holistic, interdisciplinary approach to learning about harmful substances. This book is not just about prevention teaching—it's about creating a lasting, positive impact on young lives that they can carry on into adulthood.

Created to support all teachers, particularly those new to the subject or who are non-specialists, Harmful Substances provides crucial information and knowledge that will ensure effective and impactful classroom sessions.