Nine out of ten adults in the USA struggle to understand basic health-related information. Across the pond, in the UK, 7.1 million adults read at, or below, the level of a nine-year-old, with 60% unable to understand health information. An increasing body of research in rheumatic diseases has sought to understand the impact of health literacy, long neglected as a social determinant of health, on clinical and non-clinical outcomes. Several