When Dr. Christian Barnard performed the world's first successful heart transplant back in 1967, he reached a new peak of human scientific achievement. However, almost 40 years later, the criteria for receiving a new heart is quite stringent, and heart transplants are granted to those patients who have the highest chance for recovery. For thousands of elderly or gravely ill patients with damaged hearts, a transplant is not an option. Now Israeli researchers are at the forefront of research which could one day make heart transplants obsolete - using stem cell technology, they're developing a way to use the blood...