Hyong Jin Cho, MD, PhD, is an assistant professor in the Department of Psychiatry and Biobehavioral Sciences at UCLA and a board-certified psychiatrist. His research has focused on the role of systemic inflammation in depression, fatigue, and sleep disturbance, three constructs often collectively named as ‘sickness behavior’. His current study examines the potential causal contribution of sleep loss to depressive symptoms via inflammatory mechanisms, by experimentally inducing sleep deprivation and systemic inflammation. He obtained his medical degree at the University of Sao Paulo Medical School, and completed his psychiatry residency first at the University of Sao Paulo and later at UCLA. He obtained a master’s degree in epidemiology at the London School of Hygiene & Tropical Medicine, and completed a PhD program at the Institute of Psychiatry, King’s College London. He also trained as a postdoctoral fellow at the Cousins Center for Psychoneuroimmunology at UCLA. He is the recipient of the UCLA CTSI KL2 Translational Science Award, the NARSAD Young Investigator Grant, and several other awards from American Psychiatric Association, Southern Psychiatric Association, American Psychosomatic Society, Korean Neuro-Psychiatric Association, Friends of the Semel Institute, and Claude D. Pepper Older Americans Independence Center. He is currently an editorial board member of World Journal of Psychiatry and Journal of Integrative Psychology and Therapeutics.