Liwa Pardthaisong is a population geographer. Her research focuses on the issues of demographic changes, population and health, and livelihoods of the elderly. Her previous research projects were: the demographic interactions among low fertility, migration, and HIV/AIDS in rural Northern Thailand; health problems and health care access of labour immigrants from Myanmar in Thailand; HIV/AIDS risk among road construction workers in Yunnan Province of PDR China, the quality of life of the rural ageing in Japan; and the social care and support of the elderly in the Special Nursing Homes in Japan. She also interested and involved in the research projects in health and environment and disaster resilience.