Across the UK, the US, Australia and Europe, mental distress and substance use co-occur at extraordinary rates — and the systems built to respond to them remain split down the middle. People are referred and re-referred, dropped for missing appointments, or turned away in crisis because they are “too high” for mental health care or “too distressed” for substance use services.
This book argues that the failure is not a resourcing accident. It is structural. Our systems are built on a broken ontology: a set of inherited assumptions — Cartesian dualism, biomedical reductionism, neoliberal individualism — that are structurally incapable of holding the reality of co-existing distress.
Drawing on critical realism, phenomenology, and a decade of frontline practice, the book dismantles those assumptions and offers the Layered Care Model: a way of working that treats people not as problems to be split and solved, but as whole human beings to be recognised and supported.
Our systems are not failing because of a few bad policies or underperforming services; they are failing because they are built on a broken ontology. This is not an individual failing. It is design. And design can be changed.— From the Preface