My Guru told me so. The foot is subject to more pressure, weight and injury than any other part of the body. Yes, my feet hurt. Boy, do they hurt. It's the back.
Back injuries are the leading cause of couch potatoes.
They're all ligaments, whatever they are. Each toesy joint has a little tiny muscle attached to it. They're big and long too. Don't know why I picked this number, but it sounds good. Don't know, but I've sprained them.