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12-14-2011, 11:47 AM
Join Date: Oct 2009
Country: Canada
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Originally Posted by MatthewT View Post
a helmet just protects the outside of your head. The cause of a concussion is your brain bouncing off the inside of your skull.
Originally Posted by armani View Post

Though it's true that concussions is caused by your brain bouncing around on the inside of you skull.

A helmet will displace the energy of a blow to the head, thus reducing the amount of bouncing around your brain does.

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