Researchers from Boston University have recruited more than a 100 former footballers who have played in the National Football League (NFL) in a three-year study

Presently the only way to check whether a person suffered from CTE was by scanning the brains of athletes after their deaths.
The researchers will be hoping that their three-year long study will help them come up with a way to diagnose this problem when the person is still alive. The co-director of BU's School of Medicine, Robert Stern said that unless a way can be found to diagnose the condition during a person’s lifetime, effective treatments cannot be developed.
Source-Medindia