13 Things You Need To Know About Concussions. Includes descriptions of what happens at a molecular level when people suffer head hits
The Helmet That Can Save Football. Learn how to protect your brain against impact
Helmets And Mouthguards Don't Prevent Concussions, Doctors Agree. Except for perhaps the most high-tech models, helmets protect against many injuries, but not concussions in particular.
Engineering The Ideal Olympian: The Games Of Risk. This story talks about injury rates and the latest protective gear in some other high-impact sports, including hockey, skiing, and snowboarding.