Chronic Traumatic Encephalopathy (CTE)
The discovery of the silent epidemic of CTE has had far-reaching effects
Changes in sports rules and protocols, increased awareness of concussion risks, legal battles involving sports leagues, debates about youth participation in contact sports.
Chronic Traumatic Encephalopathy (CTE) is a progressive neurodegenerative disorder linked to repeated head trauma. This condition, once known as “punch drunk syndrome” in boxers, has gained significant attention in recent years due to its prevalence in professional athletes and military veterans.
The Science Behind CTE
CTE is characterized by the abnormal accumulation of tau protein in the brain. This buildup forms clumps that spread throughout the brain, killing brain cells. Unlike other neurodegenerative diseases, CTE has a clear environmental cause: repeated brain trauma.
Causes and Risk Factors
- Repeated concussions
- Subconcussive hits (impacts that don’t cause concussion symptoms)
- Participation in contact sports (football, boxing, hockey, rugby)
- Military service (especially combat exposure)
- History of physical abuse
- Any activity with risk of repetitive head impacts

