Next gen hard hats give better protection against head injury : Shots - Health News : NPR
More padding the issue of concussions and better helmets
Kansas City Researcher Says Active Helmet May Prevent Football Concussions
Football helmet with liquid padding may prevent concussions
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Football helmets have improved but are far from 'concussion proof' – Orange County Register
Helmets: Guide to Choosing the Best Ones for Youth Sports - Ogborn Mihm LLP
Riddell launches Axiom, latest helmet to combat concussions
The NFL concussion protocol cannot save football