Elderly individuals are increasingly using social media sites to access health-related information. Using responses from 610 elderly individuals in Sweden to a large-scale questionnaire survey, this study examines technology acceptance model and sociodemographic factors that positively influence elderly individuals' use of social media for health-related activities. The results show evidence of a positive association between general technology use experience, attitudes toward technology use, age, or gender, and the use of social media for health-related activities. Technology attitudes strengthen the effect on social media use for health-related activities regarding general use of technology, for older individuals, and among females.