You know how medical advances always sound really obscure and weird? As in: “this new combination of tetrahydrozolene benzoate wrapped up with cow RNA and caterpillar mitochondria may make you itch less in the evenings”? Well, how about we keep it real and simple with something like “Pixie Dust”. Because apparently, that’s the name informally given to a substance that helps to save limbs from amputation. No-one is quite sure how it works yet, but it’s made from pig bladder, and something about the material in pig bladder encourages large sections of human tissue to regrow – very quickly, too….