It's not the helmets causing injuries. It's the helmet to helmet hits that cause injuries. And they have penalties for that.

it would create more injuries...more concussions...without the extra protection the current helmets provide

Because That Would Cause Even More Injuries! Why Do U Think They Came Out With Hard Helmets??

because people used to die wearing leather helmets.

Maybe Leland Melvin could help design a lining to help impact absorption.

they don't go back to leather because they are not very protective and i'm going with the guy that said it's helmot to helmot that causes the injuries

lol like that would help. more head injuries would happen. guys are just faster, stronger, and hitting harder - its as simple as that.

because with current helmets there are injuries but with leather helmets there are more deaths