https://www.vice.com/en_us/article/wxjdd5/scientists-dramatically-extend-cell-lifespan-in-anti-aging-breakthrough

Scientists have achieved a significant breakthrough in the effort to slow the aging process with a novel technique that increased the lifespans of yeast cells by a whopping 82 percent, reports a new study. 

By programming cells to constantly switch between two aging pathways, researchers were able to prevent them from fully committing to either deteriorative process, a method that nearly doubled the lifespan of the cells. In other words, rather than the entire cell aging at once, the aging process was toggled between different physical parts of the organism, extending its life. This synthetic “toggle switch” offers a potential roadmap toward treatments that could one day extend human longevity, though that future is highly speculative at this time.