Most deaging injections focus on cosmetic signs of aging, but what about the vital organs that keep us alive in the first place? According to a recent Telegraph article, researchers at the Bristol Heart Institute are looking to inject hearts to make them function like they were 10 years younger. Certain people carry a variant of the BP1FB4 gene that makes them live longer with fewer heart problems. The Bristol scientists extracted those genes, and inserted them into a benign virus and injected them into elderly mice. They interestingly found that the shot rewound the heart’s biological clock the equivalent of 10 human years.