Dal's high-tech football helmets can help detect concussions from the sidelines | CBC News
Guardian Caps | Guardian Sports
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
NFL, NFLPA approve concussion-reducing helmet for quarterbacks
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
Helmet Add-ons Unlikely to Prevent Concussions | MedPage Today
/cdn.vox-cdn.com/uploads/chorus_image/image/30673345/speedflex_quarter_view_lr__2_.0.jpg "New Riddell SpeedFlex football helmet pits technology vs. concussions - SBNation.com")
New Riddell SpeedFlex football helmet pits technology vs. concussions - SBNation.com
What would an anti-concussion helmet look like?
Helmet heads: Soccer headgear has skeptics, believers
NFL and players union announce new quarterback-specific helmet to combat concussions | CNN
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
New NFL Helmet Cuts Quarterback Concussion Risk—But Only 7% Better Than Older Models
New Smart Helmet Could Spot Concussions in Real Time | Columbia Magazine
Cincinnati researchers find helmets don't protect back of head -
NFL: Concussions dropped by more than 50% among players who wore Guardian Caps during summer - CBSSports.com
Riddell launches Axiom, latest helmet to combat concussions
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Practice helmets worn to reduce concussion risk
First QB helmet designed to help reduce concussions approved | AP News
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
Concussion-Sensing Helmet | MIT Technology Review
More padding the issue of concussions and better helmets
3 in 4 Youth Football Players Have Ill-Fitting Helmets, Posing Concussion Risk
The New Football Helmet Test That Could Save Kids From Concussions | TODAY - YouTube
/cloudfront-us-east-1.images.arcpublishing.com/gray/TLW47ZXAM5FKDCVZNGQMMRQS6M.jpg "APEX helmet designed to protect players")