“At this time, the relationship between exposure to head trauma and neurodegenerative diseases is unknown, as research in this area is inconsistent and incomplete. Chronic traumatic encephalopathy (CTE), a neurodegenerative disease, has been reported in some athletes. However, in many other athletes, CTE is not present. Moreover, studies suggest that former athletes are not at increased risk of suicide, and previous high school football players do not have a greater chance of developing diseases such as CTE later in life.”
Dr. Katheryn Schneider

The largest CTE study of its kind, found CTE in 110 of 111 brains of deceased former NFL players. The study examined 202 brains of former football players at high school, college and football. The study showed that the risk increased from high school to college to pro football.

“Out of 202 deceased former football players total — a combination of high school, college and professional players — CTE was neuropathologically diagnosed in 177, the study said. The disease was identified in 110 out of 111 former NFL players. It was also found in three of the 14 high school players and 48 of the 53 college players. The study included brains of individuals who have been publicly confirmed to have had the disease, including Ken Stabler, Kevin Turner, Bubba Smith and Dave Duerson.

With this irrefutable proof and the number of class action lawsuits already won against the NFL for players diagnosed post mortem with CTE due to repeated head trauma (see Junior Seau’s case below) it’s hard to believe that some scientists are muddying the waters and not acknowledging the link between repeated head trauma (concussions being a form of head trauma) and CTE. However, many others are acknowledging that football players are at risk of CTE and demanding a call to action to find answers.

“There’s no question that there’s a problem in football. That people who play football are at risk for this disease,” said Dr. Ann McKee, director of Boston University’s CTE Center and coauthor of the new study. “And we urgently need to find answers for not just football players, but veterans and other individuals exposed to head trauma.”

Junior Seau’s Lawsuit Against the NFL.

“A postmortem study of Junior Seau’s brain concluded he had suffered from chronic traumatic encephalopathy (CTE), which has been linked to head trauma in football.

In its lawsuit, the family accused the NFL of negligence and said Seau had suffered from symptoms of brain injury caused by repetitive, traumatic head injuries as an NFL player.

That class settlement became effective in January 2017 and already is showing more then $560,000.00 in approved claims.

https://www.usatoday.com/story/sports/nfl/2018/10/05/junior-seau-family-settles-concussion-lawsuit-against-nfl/1535929002/