Guskiewicz and colleagues found that
retired NFL players who had at least three concussions during their careers had triple the risk of clinical depression as those who had no concussions... Those who recalled one or two concussions were 1 1/2 times more likely to be diagnosed with depression
On the other hand, the NFL found that concussed players returning to play in the same game showed :
Fewer initial signs and symptoms than those removed from play. Return to play does not involve a significant risk of a second injury either in the same game or during the season. The current decision-making of NFL team physicians seems appropriate for return to the game after a concussion, when the player has become asymptomatic and does not have memory or cognitive problems....but for players sustaining concussions requiring more than 1-week removal from the game:
only 1.6% involved a prolonged postconcussion syndrome. They recovered from symptoms and had a consistent return to play in the NFL.It doesn't take a neuropsychologist to realize that something is wrong here....
