Abstract
Sleep and circadian health are crucial for healthy aging but remain understudied among zeroth-generation immigrants—older adults who immigrate to the US later in life for family reunification. This study examines associations of sleep and circadian rhythms with frailty and cognition among older Chinese immigrants. We will recruit 200 adults aged ≥65 years to complete questionnaires, cognitive and physical assessments, and 10-day actigraphy with sleep diaries. We hypothesize that poorer sleep and circadian health will be associated with greater frailty and worse cognitive performance, particularly among zeroth-generation immigrants, with acculturative stress contributing to these associations. Findings will inform targeted interventions to reduce health disparities.
