20 de novembro de 2013

American Football: a dangerous sport

American football can cause damage to the head. Retired players have been tested and most of them had some brain tumor. This is because of the hits they receive in the head while they are playing. Players give other players lots of kicks and they fall down with their head. If they don't wear helmets, they could have serious injuries on their brains.

From Sciencedaily.
Written by Rubén Ferreira and Sebastián Noreña

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