Epigenetics: Is Trauma Really In Your Cells”?

You have heard the claim. Maybe from a podcast, maybe from a facilitator at a workshop, maybe from a cousin who read something: trauma is written into your DNA, and what your grandmother lived through is sitting in your cells right now.

It is one of the most emotionally powerful ideas in circulation, and it is only partly true. This essay takes it seriously enough to tell you which parts.

🧬 What the research actually shows about how hardship changes the way genes are expressed, and why the stress system is the most replicated piece of the puzzle

👵 The difference between trauma being passed down through pregnancy, caregiving, and poverty, and trauma being passed down through egg or sperm, and why only one of those is well-supported in humans

🏫 How researchers have started pointing epigenetic clocks at institutions, finding accelerated biological aging in people born in Jim Crow states and in Black adolescents attending segregated schools

⚠️ Why sociologists are nervous about a beautiful idea, and how molecular explanations can quietly turn a story about colonization and wage theft into a story about what one mother did while pregnant

🔮 Three plausible futures for this science, including the one where it gets captured by insurers and courts

Who this is for: readers who want to understand what "biological embedding" really means, anyone working in health, education, or reconciliation who keeps encountering the inherited trauma claim, students of health inequality, and people who suspect that "it's in my DNA" is doing emotional work the evidence cannot support.

Every factual claim is grounded in current peer-reviewed research, with working links to the sources.

Download the full essay below.

📣 A note before you go: the pieces in this collection are written to be talked about, not just read. If something here sticks with you, consider convening a community conversation circle around it. Pull together a few people, pick an article, and give the discussion room to breathe. There is a short, free guide on how to run one here: https://claude.ai/public/artifacts/fdc844a1-9921-4d7a-afff-37fb8f65b311. If you cannot find an article in the collection that fits the conversation your community needs to have, write to me at mbdurieux@gmail.com and let us see what we can do.

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