Originally Posted by RJM:
It may not be the competitive environment we live in. It could be the old school "shake it off so no one thinks you're a pussy."
Thats how many grew up, but there is no room for that with concussions:
http://www.youtube.com/watch?v=wb6Bm5skuBA
http://www.youtube.com/watch?v=OlQcKuzzLDw
http://www.cdc.gov/TraumaticBrainInjury/severe.html