lon How g you live has a lot to do with your environment and lifestyle, but exceptional long life may have even more to do with your genes. For the first time, researchers have discovered a genetic recipe(基因谱) that can tell who may live to 100 and beyond. ... It seems clear that those who live extremely long are benefiting from a special DNA. In fact,Perls believes that the older a person gets, the more likely it is that his or her genes are contributing to those extended years. .