Do changes in health lead to changes in the probability of voting? Using two longitudinal datasets, this article looks at the impact of three measures of health – physical health, mental health and overall well-being – on voting trajectories in young adulthood. The results show that self-rated health is associated with a lower probability of voting in one’s first election, depression is related to a decline in turnout over time and physical limitations are unrelated to voting. Some familial resources from childhood are also found to condition when the health–participation effect manifests.