After a hit to the head or a fall, people, especially seniors, can develop a dangerous pooling of blood and fluid between the brain's surface and it's protective covering, the dura. These "subdural hematomas" typically require surgery to fix, but a new study suggests a better approach, one that makes sure repeat surgeries aren't required. Advertisement That's important, because "even after you remove the blood, it can come back and require more surgery," explained study co-lead author Dr. Jared