Chronic traumatic encephalopathy, or CTE, returned to the national limelight this week when a gunman who believed he had the degenerative brain disease killed four people in a Manhattan skyscraper.

The gunman who killed an NYPD officer and three other people on July 28, 2025, in Midtown was largely motivated by his frustrations with the NFL. Shane Tamura, the 27-year-old shooter who fatally shot ...

The degenerative brain disease chronic traumatic encephalopathy, commonly known as CTE, was found in more than 40% of athletes who died before 30, a study out Monday showed, illustrating the growing ...

A new study has diagnosed the degenerative brain disease chronic traumatic encephalopathy (CTE) in more than 40% of youth, high school and college athletes -- primarily football players -- who were ...

Chris Simon, who won a Stanley Cup with the Colorado Avalanche in 1996, had stage 3 chronic traumatic encephalopathy (CTE) when he died by suicide in 2024, according to a post-mortem brain tissue ...

With two Philadelphia Eagles players in concussion protocol after Sunday's game, there's renewed attention on brain injuries in football. A new study released Monday outlines those concerns among ...