I'm not ashamed to admit that I'm not the best person to call if you happen to be bleeding and need help. I tend to succumb to gravity pretty quickly, which has also prevented me from being a generous donor. But I know I'm not alone, and in a continuing effort to find a reliable source for blood that doesn't require sticking people with needles, researchers at Edinburgh University have developed a new type of faux blood that could be ready for human testing in as little as two years. More »