The green dot on NFL helmets signifies a player that is allowed to communicate with their sidelines via radio. Source: Getty Images Having a piece of electronic device inside a helmet as a means ...

The NFL had a total of 182 concussions during games and practices in both the preseason and regular season, representing a 17 ...

NFL Chief Medical Officer Dr. Allen Sills is an advocate for player safety and strives to limit head ... [+] injuries. (Photo by Maximilian Haupt/picture alliance via Getty Images) Guardian Caps ...