A man stole an airplane from Seattle's airport and crash-landed it, killing himself. One local news outlet suggested that it wasn't really his fault because he had CTE from playing high school football. This is sheer nonsense.
Repetitive head injuries are par for the course for football players. Do factors such as the number of years played or the age when the athlete first started playing have long-term effects?
A new, headlines-grabbing study reports that CTE, a type of irreversible and degenerative brain damage, was found in the tissue of 110 of 111 late NFL players tested. Does this mean all pro players will eventually be diagnosed with CTE? No, not exactly. But this news does mean that the league's long-term health has been thrown for a big loss.   
The headlines all imply that nearly all football players who make it to the NFL will develop CTE. That couldn't be further from the truth. Here are four major reasons why.
In the film, actor Will Smith plays Dr. Bennet Omalu, who elucidated the cause of early dementia, depression and death among a group of former NFL players: repetitive head trauma from football, known as CTE, and the opposition he had to overcome to publicize it.
Football is an extremely popular sport in the United States. The number of boys playing football in the US is greater than the combined number of boys playing the second and third most popular sports, according to the National Federation of State High School Association (NFHS). Approximately 3 million youth athletes play