Peter Attia· MD
so the way the calcinus is actually designed designed think of like a rubber ball bouncing it was designed to absorb shock the other thing about the calanus is there's a fat pad that sits outside the calcaneus also two chambers so there's a thin micro chamber that is not easily deformable because when we walk most of us as in a walking gate we graze the heel so that outer chamber is not designed to form but there's a macro chamber on the inside of the fat pad that is highly deformable so again we have a fat pad and we have the way the bone has been designed to absorb shock