A significant portion of former football players have been found to have a degenerative brain disease. Research on players who died between 2016 and 2021 revealed that at least a quarter of them had this condition. The brains of 235 players were examined, and most were found to have the disease.
The condition can only be confirmed after death, and the research relies on brain donations from players or their families. The lead author of the study notes that the estimated percentage is likely low.
Further details on the study's findings are available, including the total number of players examined and the percentage of brains found to have the disease.
