Dr Karen Cheung is Centre on Ageing Fellow in the Sau Po Centre on Ageing at the University of Hong Kong. She is the principal investigator of Hong Kong Centenarian Study I and Reaching Out Dementia Caregiver Support Project (REACH-HK). Her research interests cover healthy longevity, centenarians and dementia caregiving, mortality trajectory and life table analysis, population ageing, health life expectancy, family and health-related policy issues, and cross-border population dynamics.