All of Hawaii's public and private school coaches and teachers are required by law to receive education on how to recognize head injuries. Experts say it doesn't take much to get a concussion, and not just from football, but from all sports.
Flickr: epSos .de
Andrew Burton/Getty Images
Chris McGrath/ Getty
No email address was supplied by
To complete your registration on this site, please supply an address.
Please confirm or modify the email address to which you will have subscription offers sent.
For a more personalized experience, please supply the following optional information.