Zheng Xi, Chief Physician, Director of the Science and Education Department of Beijing Geriatric Hospital. As the project leader, I have presided over and completed provincial and ministerial-level scientific research projects, outstanding talent projects of the Beijing Municipal Organization Department, and popular science projects of the Beijing Municipal Science and Technology Commission, among others. I have also participated in multiple national and provincial-level projects. He has served as the chief editor or co-editor of several books, including "Poetic Talks on Elderly Health Preservation", "Theory and Clinical Practice of Elderly Frailty", "Encyclopedia of Health - Elderly Edition";, "Analysis and Application of Ethical Issues in Geriatric Medicine", and "Prevention and Rehabilitation of Geriatric Syndromes".

Social positions include member of the Epidemiology Group of the Geriatrics Branch of the Chinese Medical Association, Standing Committee Member of the Geriatrics Branch of the China Society of Gerontology and Geriatrics, Director of the Beijing Women Physicians Association, and Director of the Anti-Aging Medicine Special Issue Editorial Department of Medical Reference Daily, etc.