Why A Low Calorie Diet Extends Lifespans: Critical Enzyme Pair Identified

Why A Low Calorie Diet Extends Lifespans: Critical Enzyme Pair Identified: "To date, there are only three known genetic networks that ensure youthfulness when manipulated. One centers on the insulin/insulin growth factor-1, which regulates metabolism and growth; the second is driven by mitochondria, the cell's power plants; and the third is linked to diet restriction."