FASTER, PLEASE: Damaged heart could be coaxed into mending itself, claim scientists. “In as little as five years, researchers hope to be able to coax the heart into regenerating itself, repairing the damage caused by cardiac arrests and old age. The revolutionary treatment could be possible after scientists discovered a technique for turning ordinary connective tissue into muscle cells inside the heart. It works in a similar way to stem cells but instead of the new cells being grown outside the body and then injected back in, the technique simply makes the cells switch at the point where they are needed.”