Larisa Larionova Posted over 3 years ago Cynthia Kenyon: Experiments that hint of longer lives You should actually say: Until there's FOOD that can change your actual DNA so that you can eat only once and live without eating AND your children will have the same effect, THEN you would take any food. We'll see how long will you live with such principle, and will you have any children at all. Vaccines save lives and allow many to have their own children. The same is with many drugs. The same can be said about vitamins in some circumstances, and so on.