1) I just googled it and that's the first one I looked at.
2) See Troy Aikman, Steve Young, Austin Collie, and Jahvid Best. I'd love some evidence against it. Until then I will go by the research articles/doctors/and history of NFL players as proof.
First of all, I sincerely doubt you can find anything in the literature that has established that 1 concussion predisposes you to another (unless it's an unresolved concussion). Can you rule out the possibility that they are simply predisposed to having concussions in the first place?Until then, I'll hinge my position on what the research says, in addition to the expertise of Robert Stern (BU Medical Center) who is one of the world's leading experts in concussion research and who, oh by the way, is one of the leading figureheads in generating research with the NFL players on concussion (and chronic traumatic encephalopathy). I happened to attend a conference just about a week ago on brain trauma and athletes and asked him during a break this very question. If anyone in the world would know about this issue, it's him. And, he unequivocally said, no...there simply is no evidence or known physiological reason why would expect a resolved concussion to predispose you to having another one. Absolutely none. Not from the rodent data, not from the known effects of concussions in humans. Nothing suggests this.
The fact that folks have multiple concussions and why they do is interesting. But, at this point, we do not have anything to suggest that one begets another.
Then please explain why Troy Aikman and Steve Young were getting concussion after concussion and it ended their careers? According to you, they can just play again because they have the same probability of getting a concussion than someone who has never had one before.What about Austin Collie who had a severe concussion early in the year last year, then the first game back from that injury has another severe concussion. Must've been the worst luck ever!!!
How about Best have potentially 3 concussions already this season after multiple in college, these guys must just have bad luck
Has the thought occurred to you that some people...some brains...might be more vulnerable to concussions even before sustaining a first blow to the head? I never said or implied those guys should get right back in there. In fact, I feel just the opposite. But, it's not because I think that they had a concussion, their brains are NOW susceptible to new concussions.
It has occurred to me and I believe it's possible. But you don't think it's possible that one concussion leads to another. Or that having multiple concussions leads to a higher chance of another concussion.Concussions are a new topic without a ton of research, when compared to the rest the body. All I can base it off of is what i've read/researched + football players past results. If we ignore the past, we are in denial IMO.
It's a messy area for sure. But, the research does not support your position. The known neuroanatomy and metabolic sequelae resulting from concussions do not support your position. The rodent models do not support your position. The football players of the past do not support your position either. You are confusing correlation with causation. You can choose to believe whatever you would like, but just know that this position you are staking ground on is not supported by the research and is not in line with Bob Stern and Robert Cantu and Anne Mckee and countless other experts in neuroscience who posit that the neural cascade of effects of concussion once resolved...are resolved.
If i'm completely wrong, as you say over and over again. Then why would a player that gets multiple concussions(troy aikman, steve young, hunter hillenmeyer, etc) have to retire then?
Troy Aikman- The 2000 season was Aikman's final season as a professional football player. Aikman suffered from several concussions during the season, and a revolving door at QB took place between Aikman and former Eagles QB Randall Cunningham. Aikman's final game was a home game against the Washington Redskins. Aikman was hit by linebacker LaVar Arrington and
suffered the 10th concussion of his career.
Steve Young- The 1999 season would turn out to be Steve Young's last. Young was plagued by concussions throughout his career. Officially, Young had suffered seven concussions, but many believe the number to be higher.[citation needed] During a Week 3 Monday Night Football game against the Arizona Cardinals, Young was violently sacked by Cardinals' cornerback Aeneas Williams due to a missed blocking assignment by 49ers' running back Lawrence Phillips. Young was knocked out of the game and did not return to that game, or any game the rest of the season, suffering from symptoms of post-concussion syndrome. The concussion he suffered against the Cardinals was reportedly his second in season that was only three weeks old. Young was forced to retire at the end of the year; the team informed him that he would be released if he did not retire.
Although Young was offered a job as the Broncos starting quarterback, he retired because of his repeated concussions
Hunter Hillenmeyer- retired at age 30
Will Hunter Hillenmeyer continue to play in the NFL?
Asked that question, Hillenmeyer was unable to provide an answer. He has, as the tragic Dave Duerson did, donated his brain to research. That leads me to believe that Hunter Hillenmeyer wants to continue to play but that decision is in part up in the air due to his past concussion. It is a consideration for him; it is a consideration for any potential employing team.