Professor and dean of the APEC Health Science Academy, Peking University (HeSAY) 
Professor of Institute of Population Research, Peking University
Professor of Institute for Global Health and Development
National Yangzi Outstanding Scholar
Chief scientist of the National Program on Key Basic Research Projects
Served as vice chairmen of the council of Chinese Association of Rehabilitation Medicine 
Vice chairmen of the council of Chinese Association of Gerontology and Geriatric
Was the board member of APEC Life Science Innovation Forum (LSIF/APEC)