A number of clinical variables are used to predict the likelihood of childhood epilepsy, however, additional predictors are needed to improve patient stratification for those at the highest risk of recurrent seizures. In this episode, we meet Adam Numis from the University of California San Francisco, who set out to assess the utility of circulating cytokines as a predictor of childhood epilepsy. He performed a longitudinal study of newborns at risk of neonatal encephalopathy, revealing an association between circulating levels of particular inflammatory cytokines and the later development of epilepsy.