Scientists have announced a significant advance in our understanding of epilepsy, as they have identified a potential method of preventing damaging seizure activity. Brain cells are nourished by an intricate network of capillaries that forms the so-called blood-brain barrier (BBB). Fundamentally, it is disruption to the integrity of these capillaries and the BBB that a group of scientists believe is a key driver of seizure activity in humans. Promisingly though, their new research shows that restoring that integrity can prevent seizures.