Eight former pro football players learned this year that they have signs of a degenerative brain disorder called chronic traumatic encephalopathy (CTE), a condition linked to depression, dementia, and memory loss. These somber findings were uncovered using a new method of brain imaging that, for the first time, enables researchers to spot signs of the condition in the living brain. Previously CTE could only be identified after a victim died.
The new method could help quantify the risks of repetitive blows to the head (see “Images of a Hard-Hitting Disease” and “Military Brains Donated for Trauma Research”). It could also help future players avoid the degenerative and sometimes lethal condition by limiting their exposure, and it may help scientists develop better protective gear and treatments.