Study Finds One in Three Middle-Aged Americans Struggle With Health Literacy Tasks

Researchers at Northwestern University's Feinberg School of Medicine tested health literacy among approximately 1,000 primary care patients between the ages of 35 and 64 in Chicago, finding that 32.5% had limited health literacy — with 13.2% scoring clearly low and another 19.3% at a marginal level. Participants completed hands-on tasks including reading fake prescription bottles, watching a simulated doctor visit diagnosing them with GERD, and recalling instructions just 10 minutes later — many struggled to do so accurately. Lower health literacy was associated with lower income, less education, unemployment, more chronic conditions, more prescribed medications, and poorer performance on cognitive screening. The authors argue the problem lies not with individual patients but with a healthcare system that uses inconsistent, overly complex labeling and materials often written at a high school or college level, when a 6th-to-8th grade standard is recommended. Experts outside the study noted that short appointment times and patients' reluctance to ask questions compound the issue. The study is part of the ongoing MidCog longitudinal project, which will track participants over time to determine whether midlife health literacy predicts worse health outcomes later. Researchers and clinicians recommend simplifying patient materials, standardizing drug labeling, and encouraging patients to ask open-ended questions of both doctors and pharmacists.