My football helmet with my Dads football helmet from over 30 years ago. : r /mildlyinteresting
Helmet manufacturers, coaches try to protect players with advanced technology
Riddell launches Axiom, latest helmet to combat concussions
A former Harvard quarterback tackles NFL concussion woes
Op-Ed: 5 steps to protect football players' brains and keep the sport alive - Los Angeles Times
New football helmet testing proposed for concussion protection
New high-tech helmets may protect American football players from debilitating concussions
Fight Against Concussions: New Tests Could Improve Football Helmets
New Football Helmet Standards To Take Effect In 2018