Sarangan Ketheesan

Dr. Sarangan Ketheesan is a Psychiatrist at the Royal Brisbane and Women's Hospital and an Adjunct Senior Fellow at the National Centre for Youth Substance Use Research within The University of Queensland's Faculty of Health, Medicine and Behavioural Sciences. He holds a Master of Public Health from James Cook University and is pursuing a PhD on veterans with post-traumatic stress disorder.

• Education: MBBS (James Cook University), MPH (James Cook University)
• Current Roles: Psychiatrist, Adjunct Senior Fellow, Higher Degree by Research Scholar

His research focuses on stress and allostatic load in Indigenous Australians, veterans' mental health, autoimmune neuropsychiatric disorders, and substance use. He has contributed to systematic reviews and narrative reviews examining stress biomarkers, trauma-informed care, and health disparities among Aboriginal and Torres Strait Islander populations. His work spans neuroendocrinology, psychoneuroendocrinology, and clinical research methodologies.

Recent publications highlight his expertise in autoimmune psychosis, catatonia diagnosis, and stress reactivity in ethnic minorities. He collaborates with multidisciplinary teams on topics like rheumatic heart disease's neurobehavioral impacts and stimulant medication use in eating disorders. His 2023-2025 grant explores stress and substance use in veterans with PTSD.