The notion that we stopped evolving in the Paleolithic period simply isn’t true. Our teeth, jaws, and faces have gotten smaller, and our DNA has changed since the invention of agriculture. ” says geneticist Sarah Tishkoff of the University of Pennsylvania. Fundamental Feasts For some cultures, eating off the land is—and always has been—a way of life. Dietary iodine is needed to make essential thyroid hormones involved in metabolic processes. This includes growth and energy use, as well as brain …
