In other words, the genes themselves don’t change quickly. But through the influence of the phenomenon known as epigenetics, the same genes can become more or less decipherable, and thus better or worse at doing their particular jobs. Time wasn’t a problem in this aspect of our DNA. Epigenetics can happen within one generation. And there is a world of things that can create an epigenetic effect on our genes, including the kinds and amount of food that our parents ate.
