Paula M. Fitzgibbons explains:
It’s possible my daughter’s condition is unavoidable—that she was born with a fear of death imprinted on her genes. There is plenty of precedent in my family, with an unbroken line of anxiety-ridden women stretching back to my great-great grandmother, who made a harrowing journey from Ireland to the United States. Researchers do believe there’s a genetic component to anxiety, but for a time, I believed my daughter was additionally cursed by epigenetics, or the idea that our experiences can write themselves into our children’s DNA. I’ve since abandoned the idea—the science of epigenetics is still sketchy, and I don’t have the time or mental energy to devote to an unproven concept when our problem is more immediate. My daughter’s anxiety is interrupting her daily life and nightly sleep.”
It seems almost petty to point out, but given the stakes I think it very important to acknowledge we witness, in this passage, the temptation of pseudoscience, and the practical gravity drawing one away from such shiny and dangerous notions. While the epigenetics of fear are, indeed, mind-boggling, the point is that virtually nothing about the concept is sound, yet. Or, as Lisa Simpson once said, “You don’t control the birds. You will, someday, but not now.” That mice verge on the Lamarckian when conditioned in a context of mortal fear and the torture to inspire it is a far cry from what’s going on with human beings; and while it’s true I haven’t followed this question so closely over the last few years, it’s also one of those subjects we would have heard something about if someone achieved any sort of definitive answer about anything. There are myriad reasons to be tempted by epigenetics in these aspects, but behavioral epigenetics does not at this time a sound science make.
Fitzgibbons, Paula M. “Watching My Daughter Develop the Same Anxiety I Struggle With”. The Cut. 12 September 2017.