The Safest Football Helmet Is Not Yet A Hit In The NFL WSJ
Dick Butkus, Legendary NFL Linebacker, Dies at 80 - WSJ
The Safest Football Helmet Is Not Yet A Hit In The NFL WSJ
Helmet-to-Helmet Hits in N.F.L. Haven't Diminished, but Penalty Flags Have - The New York Times
NFL Helmet Rule: Here is everything you need to know about it - Mile High Report
Vicis expands helmet line with new soft 'cap' for practices, 7-on-7 and flag football – GeekWire
Concussions are a huge issue in football. Outer-padded helmets could go a long way toward solving it. - ESPN
How Football Tech May Change the Game for Head Injuries - WSJ's The Future of Everything - WSJ Podcasts
New Smart Helmet Could Spot Concussions in Real Time