Toby is a consultant psychiatrist at South London and Maudsley NHS Foundation Trust and an NIHR Academic Clinical Lecturer at King’s College London. His research focuses on the overlap between mental and physical health, with particular expertise in how psychiatric medications affect weight, metabolism, and cardiovascular risk. He has published widely on the metabolic effects of antipsychotic and antidepressant medications. Toby is the lead editor of The Maudsley Prescribing and Practice Guidelines for Physical Health Conditions in Psychiatry and led the writing of the recent Lancet Psychiatry Commission on the physical side-effects of psychiatric medication. Clinically, he runs a weight management service for people with severe mental illnesses such as bipolar disorder and schizophrenia, and also specialises in the care of patients with treatment-resistant schizophrenia at the Maudsley Hospital.