Sir Simon Charles Wessely (born 23 December 1956) is a British psychiatrist. He is Regius Professor of Psychiatry at the Institute of Psychiatry, King's College London and head of its department of psychological medicine, vice dean for academic psychiatry, teaching and training at the Institute of Psychiatry, as well as Director of the King's Centre for Military Health Research. He is also honorary consultant psychiatrist at King's College Hospital and the Maudsley Hospital, as well as civilian consultant advisor in psychiatry to the British Army. He was knighted in the 2013 New Year Honours for services to military healthcare and to psychological medicine. From 2014 to 2017, he was the elected president of the Royal College of Psychiatrists.
Training
After attending King Edward VII School in Sheffield from 1968 to 1975, Wessely studied at Trinity Hall, Cambridge (BA 1978), University College, Oxford (BM BCh 1981), and the London School of Hygiene and Tropical Medicine (MSc 1989). In 1993 the University of London conferred upon him the degree of Doctor of Medicine.
Wessely completed a medical rotation in Newcastle. After attaining medical membership he studied psychiatry (his primary interest) at the Maudsley in 1984. His 1993 doctoral thesis was on the relationship between crime and schizophrenia. Post-doctoral studies included a year at the National Hospital for Neurology and Neurosurgery and a year studying epidemiology at the London School of Hygiene and Tropical Medicine. In 1999 he was elected fellow of the UK Academy of Medical Sciences (FMedSci).
Wessely's main research interests lie in the "grey areas" between medicine and psychiatry, clinical epidemiology and military health. His first paper was entitled "Dementia and Mrs. Thatcher", since then he has published over 600 papers on subjects including epidemiology, post traumatic stress, medicine and law, history of psychiatry, chronic pain, somatisation, Gulf War syndrome, chemical and biological terrorism and deliberate self-harm. He has published most widely on aspects of chronic fatigue syndrome, including its aetiology, history, psychology, immunology, sociology, epidemiology and treatment.
Work on chronic fatigue syndrome
In the first years after the introduction of the diagnosis chronic fatigue syndrome the condition was often mocked in the media, for example being described as "yuppie flu". Wessely and his co-workers verified that this stereotype was inaccurate, substantiating an association between autonomic dysfunction and chronic fatigue syndrome and providing reliable data on the prevalence of CFS in the community, showing that it has become an important public health issue. Other work on CFS included the development of new measurement tools, establishing the lack of relationship between hyperventilation and CFS, discovery of an endocrine "signature" for CFS that differed from depression and that prior depressive illnesses were likely linked to the condition in some cases.
Wessely and his colleagues, using randomised controlled trials and follow-up studies, developed a rehabilitation strategy for patients that involved cognitive behavioural and graded exercise therapy, that is claimed to be effective in reducing symptoms of CFS (a condition that otherwise lacks a cure or unequivocally successful treatment) in ambulant (non-severely affected) patients. Other studies looked at the professional and popular views of CFS, neuropsychological impairment in CFS, and cytokine activation in the illness. Some of his other written work includes a history of CFS, numerous reviews, and co-authoring the 1998 book Chronic fatigue and its syndromes. He has also established the first National Health Service programme solely devoted to patients with CFS, and continues to provide ongoing treatment with patients at King's College Hospital.
Wessely believes that CFS generally has some organic trigger, such as a virus, but that the role of psychological and social factors are more important in perpetuating the illness, otherwise known as the 'cognitive behavioural model' of CFS, and that treatments centred around these factors can be effective. He describes the cognitive behavioural model as follows: "According to the model the symptoms and disability of CFS are perpetuated predominantly by dysfunctional illness beliefs and coping behaviours. These beliefs and behaviours interact with the patient's emotional and physiological state and interpersonal situation to form self-perpetuating vicious circles of fatigue and disability... The patient is encouraged to think of the illness as 'real but reversible by his or her own efforts' rather than (as many patients do) as a fixed unalterable disease".