Prof Dinesh Bhugra CBE is Emeritus Professor of Mental Health and Cultural Diversity at the Institute of Psychiatry, Psychology and Neuroscience, King's College London and President of the World Psychiatric Association. He has written extensively on cultural factors and mental illness, psychosexual medicine and spirituality. Stuart Bell CBE is Chief Executive of the Oxford Health NHS Foundation Trust. He joined the NHS in 1982 and has worked in the acute and mental health sectors, in organisational development and performance management at regional level and in the Department of Health. Prof Alistair Burns CBE is Professor of Old Age Psychiatry at the University of Manchester, National Clinical Director for Dementia and Older People's Mental Health in NHS England and an Honorary Consultant Psychiatrist in Manchester. His research interests are around dementia and his clinical work is part of a Community Mental Health Team for older people.