The prospect of diagnosing chronic traumatic encephalopathy (
Former All-Pro running back Larry Johnson, who experienced a nine-season career defined by physical play, has become a vocal figure regarding the long-term impacts of the sport. Johnson, 46, reports frequent struggles with memory loss and emotional regulation, leading him to believe he may be living with the condition. His experience highlights the uncertainty faced by many retired athletes who suspect their cognitive symptoms are linked to the repeated sub-concussive hits associated with CTE.
The Search for Clarity in Brain Health
Neuropsychologist Michael Alosco of Boston University, who is involved in the second phase of the Diagnose CTE Research Project, suggests that researchers are making progress. The study, which has tracked over 300 former players since 2015, focuses on individuals aged 50 and older to identify patterns in cognitive decline. While a definitive timeline for a diagnostic test remains elusive, experts emphasize that identifying CTE in the living could be transformative for treatment.
Harvard University researcher Rachel Grashow notes that many cognitive symptoms often attributed to CTE—such as sleep apnea, hypertension, and depression—are actually treatable. A 2024 study revealed that nearly one-third of former players with such health issues believed they had CTE, a perception linked to a fivefold increase in suicidal thoughts. By distinguishing between treatable conditions and CTE, medical professionals hope to provide better care and reduce the psychological burden on former athletes.
Player Perspectives on Diagnostic Testing
When asked whether they would opt for a test to diagnose CTE while still active, players offered a wide range of responses. Washington Commanders quarterback Marcus Mariota expressed support for the potential insight it could provide, noting that such data could help educate younger generations about the risks of the game. Similarly, Dallas Cowboys safety Malik Hooker stated he would take the test for the sake of his family, emphasizing the importance of maintaining his health for his life beyond football.
However, others expressed hesitation regarding the impact such knowledge might have on their careers and personal lives. Indianapolis Colts tight end Mo Alie-Cox admitted he would be wary of being treated differently if diagnosed, while Minnesota Vikings safety Joshua Metellus suggested that knowing his status might fundamentally alter his aggressive style of play. Some players, including those who spoke on the condition of anonymity, pointed to the lack of current treatment options as a reason to avoid testing, while others noted that they would only consider it after their playing days had concluded to facilitate necessary lifestyle changes.
