Originally Posted by
prairiepedaler
Styrofoam degrades? It takes many decades for polystyrene to degrade, even buried in healthy active soil. Manufacturers of helmets want more sales so they are bound to make that kind of claim.
Heat and sweat, physical movement...and yes they fall apart.
Helmets are so much better that you have no reason to be attached to one. You buy a new car with more airbags and better restraints etc. so I don't get that.