It's a great question. The quick answer is I don't know.
What do I think? I think you're asking the question now if they had a concussion. I think we're old enough to know that previously, concussions were dismissed, and it wasn't even conceivable that people could actually have persisting symptoms. I think that now that we ask, we see them.
I think society has also changed. I think people are on board all the time with thinking of these sorts of things, with regard to technology and these sorts of things that can perpetuate symptoms.
I think it's because we're more aware of it. We're actually asking the question, whereas you were almost vilified before if you actually said you had symptoms afterwards. It was almost blaming the patient for saying they had ongoing symptoms, because no one would ever believe them. We have many examples of this through health care and through the insurance industry trying to minimize these things.