Yeast, mice, rats and flies are the tools of basic research into aging and related conditions. Today, it's yeast. This article from Betterhumans discusses recent work that will lead to a better understanding of the link between aging and cancer. The chance of developing cancer increases rapidly after a certain age, suggesting a biochemical trigger of some sort. This research puts scientists on track to find - and then hopefully fix - this mechanism in humans. As I have said before, scientists are at the stage where any and all new information can be turned to positive use in the fight against aging.