​Scientists engineer worms to live the equivalent of 500 human years

In an experiment that even caught the researchers by surprise, nematode worms had their lifespans increased by — get this — five times. By tweaking two longevity-related genes, the researchers created an unexpected feedback effect that radically amplified lifespan. The technique could eventually be used to treat… » 12/16/13 2:20pm 12/16/13 2:20pm