The COVID-19 pandemic and prolonged quarantine affect the health behaviors of older adults. We investigated the changes in older adults' lifestyles during the pandemic in a sample of 1020 people aged 60 years old and over in Tehran. The results revealed that the COVID-19 pandemic had a positive impact on nutritional behaviors and social support while having a negative impact on physical activity and anxiety in older adults. Due to the greater deterioration of health behaviors among unmarried older adults, low socio-economic status, and COVID-19 inpatients, policymakers must pay attention to interventions to promote healthy lifestyles.
Keywords: COVID-19; lifestyle; nutrition; older adults; physical activity; social support.