Dr. Frederick Chan is a Research Assistant Professor in the Department of Social Work and Social Administration, The University of Hong Kong. He holds a BSocSc and MPhil in psychology from HKU, and a PhD in health psychology from the Lee Kong Chian School of Medicine, Nanyang Technological University. His research examines the manifestation, mechanisms, and management of physical and mental symptoms in mid- and late-life. Using mixed-methods designs, he maps how biopsychosocial processes shape symptom experience and functional outcomes. His work spans various symptoms such as pain, brain fog, and depression, across various populations including older adults, people with chronic illness, and mid-life women experiencing menopause. By understanding these key drivers of disability, this research programme aims to develop theory-driven, evidence-based, pragmatic interventions that promote holistic well-being.