The latest study on CTE in football players “quantifies but does not reveal a problem,” writes Emily Harrison, a historian who studies brain injury in football.

Maura Horton read the latest stories, the ones detailing the startling research that as many as one in four NFL players could end up with CTE, and she knew what would happen next.

The latest study on CTE in football players “quantifies but does not reveal a problem,” writes Emily Harrison, a historian who studies brain injury in football.