New high-tech helmets may protect American football players from debilitating concussions

Millions of people in the US are concussed every year playing sports. Players of games like American football are at particularly high risk for injuries that can have devastating long-term consequences. Stanford University scientists working with the company Savior Brain have now designed one potential way of protecting players: a helmet containing liquid shock absorbers that could reduce the impact of blows to the head by a third.