Dr. Agus on new football brain study: "This is a major issue" 03:21 CHICAGO -- Research on 202 former football players found evidence of brain disease in nearly all of them, from athletes in the ...

CTE stands for chronic traumatic encephalopathy. It's a brain disease caused by repeated head injuries that may include concussions. It mostly happens in athletes who play contact sports like ...

The brain disease CTE has become tied to professional football, but Ann McKee helped discover that even in high school and college, a player’s risk doubles every few years.

The brain disease can only be diagnosed after death with an examination of the brain. It is believed that those with CTE develop a range of cognitive, behavioral, mood and motor issues later in life.

Dec. 3, 2012— -- On the heels of the latest NFL suicide, researchers announced today that 34 NFL players whose brain were studied suffered from CTE, a degenerative brain disease brought on by ...

Summary: A new study questions whether playing youth football leads to harmful protein buildup in the brain. Researchers ...

This combination of PET scans provided by UCLA on April 2, 2015 shows, from left, a normal brain scan, a suspected Chronic Traumatic Encephalopathy (CTE) subject, and a subject with Alzheimer's ...

The degenerative brain disease is linked to repeated head trauma or concussions. Its symptoms depression, short-term memory loss, impulsive behavior and confusion — and these symptoms can begin ...

A new study shows that chronic traumatic encephalopathy (CTE), a degenerative brain disease, is common among American football players.

CTE research sheds light on patients' first symptoms 01:42. Brain scientists are reporting new clues on how the disease chronic traumatic encephalopathy (CTE) attacks the brains of athletes and ...

This suggests that CTE might not be its own, unique disease, according to Randolph. “Different neurodegenerative diseases have very different cognitive profiles,” he says.

The Commissioner of the National Hockey League tackles the league's efforts to increase diversity, hockey's culture of fighting and potential links between the game and the brain disease CTE.