Football helmets have improved but are far from 'concussion proof' – Orange County Register
Guardian Caps | Guardian Sports
Revolutionary new ZERO1 football helmet may help NFL players reduce concussions | Fox News
New Smart Helmet Could Spot Concussions in Real Time | Columbia Magazine
Guardian Caps - Are the soft-shelled football helmet covers effective at limiting head injuries? - ESPN
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
/cloudfront-us-east-1.images.arcpublishing.com/gray/O25YL3EJFVLGLHDWQ72VXV7RWM.jpg "Practice helmets worn to reduce concussion risk")
Practice helmets worn to reduce concussion risk
NFL helmet maker hopes to bring anti-concussion technology to US Army helmets
/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
NFL hopes to reduce head injuries with helmet experiment | AP News
Helmet heads: Soccer headgear has skeptics, believers
Concussion-Sensing Helmet | MIT Technology Review
MTSU reduces concussion risk with padded helmet covers
How a game-changing helmet design could prevent concussions - WINK News
Football Helmets and Concussion: Equaling the Playing Field - Advancing Your Health
/cloudfront-us-east-1.images.arcpublishing.com/gray/TLW47ZXAM5FKDCVZNGQMMRQS6M.jpg "APEX helmet designed to protect players")
APEX helmet designed to protect players
Guardian Cap debuts during minicamps in effort to reduce avoidable head contact
Helmet maker Riddell scores another touchdown in ex-students' concussion lawsuit | Reuters
First QB helmet designed to help reduce concussions | Sports | miamitimesonline.com
Football's Concussion Crisis Is Awash With Pseudoscience | WIRED
NFL Looks to Helmet Technology to Combat Concussions
Flexible NFL helmet aims to reduce head injuries
Puffy, spongy Guardian Caps could help curb NFL head injuries - The Washington Post
Do helmets protect against concussion? - Queensland Brain Institute - University of Queensland
Storelli ExoShield Soccer Head Guard - approved By Virginia Tech
/cdn.vox-cdn.com/uploads/chorus_asset/file/24582902/1450202884.jpg "First quarterback-specific helmet designed to reduce concussions approved for use by NFL - The Phinsider")