Quote Originally Posted by aeiea View Post
Lol, my research led me to this link:
http://www.raisethehammer.org/blog.asp?id=297
ughhhh
That "study" (if you can call it that - one guy with a wig) has been widely criticized. Many of the reasons are summarized in the comments to the link you posted.

If you want to accept his results, put a fright wig on the outside of your helmet.