Inclusion Criteria:  Age of 65 years and older with community-dwelling in Taoyuan and Hsinchu city, Miaoli county Communicate with Mandarin, Taiwanese, or Hakka Agreement to participant the frailty screening three times within half a year after explanation, and have signed an informed consent.  Exclusion Criteria:  Living in a hospital or nursing home. Dementia. Bedridden or terminal illness. Taking drugs for Alzheimer's disease or antidepressant drugs. Stroke or upper or lower limb surgery in the past three months.