Study: Newer Football Helmets Could Slash Concussion Risks
Next gen hard hats give better protection against head injury : Shots - Health News : NPR
NFL Helmet Manufacturer Warned On Concussion Risk
Everything you need to know about the NFL's helmet guidelines and restrictions - Canal Street Chronicles
Kansas City Researcher Says Active Helmet May Prevent Football Concussions
Riddell launches Axiom, latest helmet to combat concussions
VAYEAH Soft Shell Football Helmet Scrum Cap 7v7 Rugby Helmet Foam Cotton Protective Soft Padded Headgear Autism Helmet Flag Football Helmet Youth
Safety first: Lopers to wear padded caps in practice to prevent concussions
Helmet Smart Foam Signals Potential Concussions in Real Time - Medical Design Briefs
Football helmets have improved but are far from 'concussion proof' – Orange County Register
See the new football helmet that got funding from the NFL
Guardian Cap: What are and why the NFL asks this safety measure in helmets
Concussions from top-of-head impact 'more severe'