Epigenetics explains how experience writes on our bodies and minds through changes in the way genes express themselves in response to environmental factors. Genes don’t make us who we are. Gene expression does. Before their offspring is even conceived, a parent’s life experiences such as with food, drugs, exposure to toxic products and stress may be passed by way of their germ cells (sperm and ova) not only to their children, but even to their grandchildren.
One of the most valuable lessons that epigenetics has taught us is that our social lives, our interactions with others and ourselves can change our gene expression with a rapidity, breadth, and depth previously unknown. We are architects of our own lives more than we realise.