CTE – What Is CTE

CTE Education · Start Here

What Is CTE?

A simple, clear explanation of what Chronic Traumatic Encephalopathy is, how it develops, and what current research shows, without medical jargon or fear-based language.

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 a living person. Instead, doctors evaluate patterns of symptoms, a history of repeated head trauma, and how symptoms progress over time.

Important context: CTE cannot currently be confirmed in a living person. Many symptoms overlap with brain injury, PTSD, depression, dementia, sleep disruption, medication effects, and other treatable conditions.

Who's Most at Risk

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

Free CTE Caregiver Guide

If you're trying to make sense of what you're seeing at home, this plain-language guide explains what CTE is, why diagnosis is complicated, and what families can focus on right now.

Educational content only. This page does not provide diagnosis. Seek medical care for urgent concerns.