CTE – What Is CTE

A simple, clear explanation of what CTE is, how it develops, and what current research shows — without medical jargon.

Learn more about CTE:

• Early Warning Signs of CTE
• CTE Symptoms vs PTSD & Depression
• CTE Myths vs Facts

What CTE Is

Chronic Traumatic Encephalopathy (CTE) is a neurodegenerative condition linked to repeated head impacts or blast exposure. It can affect mood, memory, thinking, behavior, and daily functioning.

How It Develops

Researchers believe CTE develops over years as abnormal proteins build up in the brain — particularly in areas responsible for regulation, impulse control, and emotional balance.

Why It's Hard to Diagnose

Current medical tools cannot diagnose CTE in living patients. Instead, doctors evaluate patterns of symptoms, a history of repeated head trauma, and how symptoms progress over time.

Who's Most at Risk

• Military veterans — see

CTE in Veterans

• Contact-sport athletes
• Survivors of domestic violence
• Anyone with repeated head impacts or blast exposure

Learn More About CTE

• Early Warning Signs of CTE
• CTE Symptoms vs PTSD & Depression
• Behavioral Red Flags
• CTE Myths vs Facts
• CTE in Veterans