Twenty years after the NFL began formally to review effects of injuries from repetitive play-related head blows e.g. CTE in NFL players, researchers in 2015 announced they had found CTE in what percentage of deceased NFL players examined?
Concussions in American football Warner league banned kickoffs in an attempt to reduce high-speed collisions that result in concussions. In September 2015, researchers with the Department of Veterans Affairs and Boston University announced that they had identified CTE in 96 percent of NFL players that they had examined and in 79 percent of all football players. As of February 2015, Gary Small and colleagues have been called into question by the FDA for their overzealous commercialization and promotion of clinically unproven screening that fellow peer researchers deem fit only for research and they have responded by withdrawing related materials from their website. To date,
Concussions in American football Concussions in American football Concussions and other types of repetitive play-related head blows in American football have been shown to be the cause of chronic traumatic encephalopathy (CTE), which has led to player deaths and other debilitating symptoms after retirement, including memory loss, depression, anxiety, headaches, and also sleep disturbances. The list of ex-NFL players that have either been diagnosed "post-mortem" with CTE or have reported symptoms of CTE continues to grow. According to the Boston University CTE Center, CTE is a brain degenerative disease found in athletes, military veterans, and others with history of repetitive brain trauma. Although CTE