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Professor of Psychological Medicine at King’s College London, President of the Royal College of Psychiatrists, a consultant psychiatrist at King’s College Hospital and at the Maudsley Hospital, where he practices liaison psychiatry. 

Professor Wessely’s principal research interests are the nature and treatment of medically unexplained symptoms and syndromes, clinical epidemiology and military health. 

He has published more than 650 peer reviewed academic papers in these fields and has received over £20million in research funding. 

As well as being Head of the Academic Department of Psychological Medicine at King’s College London (to 2014), he has founded or co-founded research units focusing on chronic fatigue syndrome, gulf war illnesses, clinical trial methods and military health. 

As a result of his research work he has been appointed as a Foundation Senior Investigator for England’s National Institute for Health Research, he serves on numerous government committees for the Department of Health, Cabinet Office and Ministry of Defence and he sits on the World Health Organization work group for stress-related disorders. 

Research interests 

Unexplained symptoms and syndromes, such as chronic fatigue syndrome, gulf war syndrome and related issues. Main research at present is a long term cohort study of the physical and mental health of the British Armed Forces. 

Research Groups

NIHR Maudsley Biomedical Research Centre 

Expertise and Public Engagement

The world’s first Regius Professorship of Psychiatry was inaugurated in May 2017 at a special celebration at the Institute of Psychiatry, Psychology & Neuroscience (IoPPN). Professor Sir Simon Wessely has been appointed to the prestigious role, which is King’s College London’s first ever Regius Professorship. 

Diverting from tradition, the Professor Sir Simon Wessely's inaugural 'lecture' included a panel discussion reflecting on the recent rise in mental disorders in younger people, which Sir Simon said was 'perhaps the first true risk in psychiatric disorders in this country in several generations'.