New paper helmets help prevent concussions because they have a crumple zone that make the deceleration more gradual.
"If you crash at 15 miles per hour in a normal helmet, your head will be subjected to around 220G [G-force], whereas the new design absorbs more of the impact and means you experience around 70G instead," says Surabhi.
"If you crash at 15 miles per hour in a normal helmet, your head will be subjected to around 220G [G-force], whereas the new design absorbs more of the impact and means you experience around 70G instead," says Surabhi.
http://www.bbc.co.uk/news/health-25681895