Inheritance: How Our Genes Change Our Lives and Our Lives Change Our Genes by Sharon Moalem, MD, PhD.
This best-selling author uses an entertaining, interdisciplinary approach to science and medicine to help us understand the impact of our lives on genes, and our genes on our lives. New discoveries show our genetic strength is more than just a matter of receiving genes handed down to us from previous generations. It is derived from transforming what we get and what we give and in so doing we can change the course of our lives. These lessons are demonstrated by the use of numerous anecdotes about people with rare genetic anomalies whose lifestyle changes actually ameliorated the ill-effects certain genetic defects would normally produce! This gives promise of a future where the expression of genes can be turned on or off.
Well worth the read if you are interested in the human genome and the latest scientific knowledge available on gene expression.