Attorneys for a teen who stabbed three people outside a Ponte Vedra restaurant last year now say he may have CTE from repeated head injuries on the football field.

A Clay County contractor who was convicted Monday of killing his client in 2019 now faces the possibility of being sentenced to death for her murder.

A Clay County contractor who was convicted Monday of killing his client in 2019 now faces the possibility of being sentenced to death for her murder.

Former NHL enforcer Chris Simon has died.

The largest study to date of CTE shows number of concussion does not completely correlate to likelihood of CTE diagnosis. In fact, the number of hits to the head is a better predictor.

Soccer officials, scientists, medical professionals and others have gathered in Chicago for a head injury summit.

Four more former professional soccer players have been diagnosed with chronic traumatic encephalopathy.

We analyze the biggest tragedy in wrestling history when Chris Benoit killed his wife and son, then took his own life

UFC President Dana White is selling slap fighting as the next big thing in combat sport, and the Nevada Athletic Commission has sanctioned the Power Slap League for competitions.

Vivienne Gray doesn’t fit the same profile as former or current professional athletes forced to live with the ongoing effects of concussions.

An attorney for the widow of a former University of Southern California football player has asked a jury to award her more than $50 million in a lawsuit accusing the NCAA with failing to protect her husband from repetitive head trauma.

A Los Angeles jury has heard opening statements in the case of a widow of a former University of Southern California football player suing the NCAA for failing to protect her husband from repetitive head trauma.

Former NFL wide receiver Demaryius Thomas, who died last December at age 33, had CTE, his family said Tuesday.

Researchers have diagnosed chronic traumatic encephalopathy in a Major League Soccer player for the first time.

Researchers have diagnosed former NFL receiver Vincent Jackson as suffering from stage 2 chronic traumatic encephalopathy.

Authorities say an autopsy found unusually severe brain disease in the frontal lobe of the former NFL player accused of fatally shooting six people in Rock Hill, South Carolina before killing himself in April.

That's the premise for a new PSA from the Concussion Legacy Foundation, which wants parents to consider the long-term damage youth tackle football could inflict on their kids. The goal is for parents to keep kids out of tackle football until they're 14 to lessen their risk of chronic traumatic encephalopathy, or CTE. Plus, children's bodies aren't built to withstand the head-bobbling hits of tackle football, he told CNN. "They can choose not to play tackle football at all," he said. Bailes called the comparison between smoking and tackle football "misleading and inaccurate."

"Tackle football is like smoking," a youthful voice-over says as a smiling, motherly type lights a cigarette for one of the pre-teen players. "We now have the data that show that playing youth tackle football and developing CTE is correlated in a very similar way to smoking, and developing lung cancer," Nowinski said. "We're trying to help parents visualize that those two things are equally bad: Letting your kid smoke and letting your kid play tackle football are both bad ideas." Some states, including California, New York and Illinois, have discussed banning tackle football for children under 12. We can retool the game where they can still glean the benefits, enjoy themselves, get exercise and delay tackle football until junior high or high school."