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Punch drunk, dementia pugilistica, post-traumatic encephalopathy, or chronic traumatic encephalopathy — same criteria of diagnosis, the same patterns of change seen in the brain. Dr. Ann McKee explains.

Dr. Ann McKee wants to raise awareness about brain donation. The more brains that researchers have to study, the more information they can gather to help people in the future.

Dr. Ann McKee knows that physical exercise is healthy for the mind and the body, but it's important to do it safely to minimize the chances of brain injury.

Dr. Ann McKee is a nerve pathologist who has spent decades learning about the brains of individuals who died from Parkinson's, Alzheimer's, and CTE. She talks about what is involved in her study.

USA Today's Just the FAQs explains Chronic Traumatic Encephalopathy, a neurodegenerative brain disease found in people who have experienced repetitive hits to the head.

Dr. Perl discusses reports of the prevalence of CTE in professional athletes.

Understanding the long-term impact of a single traumatic brain injury as well as cumulative and CTE.

The issues of sports-related concussions and chronic traumatic encephalopathy were intensified when the brain of a deceased 21-year-old football player was examined.

Researchers are still learning why it is that head trauma is the main factor for CTE, but not all people with head trauma develop CTE.

Retired NFL player Thomas Jones wonders if he will develop CTE from cumulative concussions sustained playing football, but there is nothing to do about it but exercise your brain, learn what you can, and share your life with your loved ones.