The purpose of this study is to evaluate the acceptability and preliminary effectiveness of a smartphone-delivered AI-based chatbot in promoting healthy dietary behavior and physical activity participation among older adults.
aged 65 or above.
are community-dwelling.
are proficient in Mandarin.
have an Internet connection.
have any neurocognitive disorders.
are unable to engage in moderate-intensity level of physical activity due to a preexisting medical condition.
live with another participant who will participate in this study.