Your environment has an effect on your genes. It’s been proven by medical studies treating cancer patients with drugs that remove the methylating groups from their genes. This is without a doubt the truest benefit from having sorted out the genetic code. First we learned the code, now we understand the operating system the runs above that code. You might consider the Human Genome project a big deal. But the epigenetic enterprise is truly the biggest dividend being paid today by the work done by Craig Venter and the National Institute of Health (NHS).