HAIR CUTS DON'T HURT.The reason is quite simple, because hairs are made of dead cells,so we don't feel pain.The dead hair cells are filled with a tough , waterproof protein called Keratin, as are nails, and the skin flakes that we lose daily in their millions from our skin surface.All these things are part of the protective overcoat that cover and protect our body. SKIN - Skin is really thin but quite complex .Its made of two layers ; The epidermis ...