Recruitment procedure
The research team collaborated with local elders’ community centre to recruit older members to join the MMEP. Older members of the centre who expressed interest in participating were randomized into either the experimental or control group using a computer‐generated list generated in Microsoft Excel by a research assistant who did not involve in data collection. The participating elder centre was not informed of individuals' membership in the two groups. Older members served as the unit of allocation, intervention and analysis. Written informed consent was obtained from all participants before checking the inclusion and exclusion criteria.