A gunman who killed four people in Midtown Manhattan on Monday night had a documented history of mental health issues, and wrote that he believed he had chronic traumatic encephalopathy (CTE), a ...

Concerns about the long-term impacts of concussion and head injury have become prominent in recent years, particularly among participants and stakeholders of contact and collision sports. Many people ...

(NEW YORK) -- The 27-year-old man who allegedly shot and killed four people at a Midtown office building on Monday carried a note in his pocket claiming he suffered from CTE and asking that his brain ...

Chronic traumatic encephalopathy, or CTE, is a brain disease linked to repeated hits to the head, often seen in military veterans and athletes including football players, hockey players and boxers. It ...