Despite a high risk of brain injuries, military personnel rarely develop a disabling brain condition often found in former boxers and football players.
Chronic traumatic encephalopathy (CTE) goes far beyond the NFL. Everyday men and women worry they have the fatal disease, and they've turned to questionable brain products for help.
Boston University neuropathologists said Phillip Adams had chronic traumatic encephalopathy — a degenerative brain disease found in many former football players.
Doctors are closer to a test in live brains that could help diagnose chronic traumatic encephalopathy, a disease that's been linked to concussions and other repeated brain assaults.
High School athletes often raise money door-to-door for their teams. In Newton, Mass., a football player rang the doorbell of a leading brain injury researcher. Instead of money, he got a talk.
Scientists believe they have solid evidence that repeated direct hits to the head can cause the degenerative brain disease seen in some athletes, even if there are no signs of concussion.
Hernandez enjoyed a brilliant career on the football field and displayed a remarkable self-destructive streak off the field.
The relationship has been fraught with disputes about which research should be funded. Four House members have asked NFL Commissioner Roger Goodell whether the league plans to honor its commitment.
The $100 million figure represents 1 percent of the roughly $10 billion in annual income that the league and its teams have been reported to pull in.
The settlement could cost the league $1 billion to resolve lawsuits filed by thousands of former pro football players who say they suffered chronic traumatic encephalopathy, or CTE.