SYSTEM · ACTIVE
FRANCISCO CASTILLO // 6 VOLUMES
§ 01 · ESSAY

Why generational trauma keeps repeating — and how to read the loop.

The patterns your family runs were installed before you could speak. From the therapist chair: how inherited coping becomes identity, why willpower alone won't end the cycle, and the first move that actually works.

By Francisco Castillo, LMFT Read · 9 min Topic · Generational trauma

Most people come into my office thinking they have a problem. What they usually have is an inheritance. The argument they keep losing with their partner sounds a lot like one of their parents. The way they brace before a phone call is older than the phone they're holding. They didn't pick the pattern. It got handed to them, and they've been running it for most of their life without ever knowing its name.

That's what people mean, underneath the phrase, when they say generational trauma. It isn't one big event. It isn't a label you put on yourself. It's a set of rules for how to love, how to argue, how to stay quiet, how to get through a hard day, that got passed down because, once, in somebody's life you never met, those rules kept a person alive. Nobody wrote a note on the outside saying, "the emergency is over, you can stop running this now."

The research says the inheritance is real

This isn't poetic language. There's a real body of research behind it.

The Adverse Childhood Experiences study, run by the CDC and Kaiser Permanente in the late 1990s, surveyed more than seventeen thousand adults and found that people who grew up with more household adversity, like abuse, neglect, divorce, addiction, incarceration, were far more likely, decades later, to deal with depression, heart disease, addiction, and early death. The effect wasn't small. It scaled with the score. More childhood adversity meant worse adult outcomes, across almost every measure they tracked.

That tells you something, but it doesn't tell you everything, because the ACE study mostly looked at what happened to one person. The generational piece shows up in a different set of studies. Rachel Yehuda, who runs a trauma research program at Mount Sinai, has spent years looking at the children of Holocaust survivors and, later, the children of pregnant women who survived 9/11. She found changes in how the children's bodies regulated stress, changes that mirrored what their parents had gone through, even though the children hadn't lived through any of it. Something about the parent's experience was being carried forward in the child's body.

A lot of that work falls under what researchers call epigenetics, which is a long word for a simple idea: your experiences don't change your DNA, but they can change how your DNA gets read. Those changes can, at least in some cases, get passed on. The science on how much of this transmission happens through biology and how much through parenting, environment, and story is still being worked out. What's not still being worked out is the basic finding. Families carry pain across generations. That part is settled.

Why the loop keeps running

Okay. So the inheritance is real. Why is it so hard to stop?

Here's what I watch, over and over again, with people who are trying to end a pattern in their family.

The pattern used to work. Every inherited behavior, even the ones that are costing you your relationship right now, started as somebody's best answer to a real situation. A grandmother who went quiet whenever a man raised his voice wasn't broken. She was surviving. Her survival turned into a set of habits her kids picked up by watching her, and those habits became instincts in her grandkids. When you try to change one of those instincts, your body treats the change itself as a threat, because, a generation or two ago, that kind of change actually was dangerous. Part of what keeps the cycle running is that your nervous system is still protecting somebody who isn't alive anymore.

Silence does most of the heavy lifting. Families don't pass down hard stuff by talking about it. They pass it down by not talking about it. The uncle nobody mentions. The year nobody describes. The funeral that happened and then never came up again. Kids are very good at noticing what's off-limits. They don't always know what the secret is, but they learn, very early, that there is one, and they learn to shape themselves around it. That's how a whole household's emotional vocabulary gets built out of things nobody has ever said out loud. (This is the territory I spend a whole book on in The Language That Raised Us, if you want to sit with it longer.)

Breaking the pattern can feel like betraying the people you love. This is the part that catches people by surprise. In a lot of families, continuing the pattern feels like honoring your parents. Stepping out of it can feel like walking away from your mother, your father, your culture, the whole story of where you come from. So people stay inside the cycle not because they can't see it, but because leaving it feels like leaving home. Any approach to this work that doesn't take that feeling seriously is going to fail, because it's asking people to choose between being honest and being loyal, and most people will pick loyalty every time.

The reason you can't just stop the pattern is that you've been told, your whole life, that the pattern is you.

What actually starts to change things

I'm not going to give you a neat five-step list, because those lists are part of why this kind of work so often gets reduced to content that doesn't change anyone. But here's what I see happen, in the room, when someone genuinely starts to step out of a pattern.

They stop trying to fix themselves and start trying to notice themselves. The first move isn't action. It's paying attention. You start watching your own reactions the way you'd watch somebody you're curious about. "Huh, I just shut down there. Where did I learn to do that? Whose shutdown is this?" That kind of watching, on its own, doesn't sound like much. It's everything. Without it, every other move is just a prettier version of the same habit.

They start giving the pattern a name that isn't only theirs. There's a version of this work where you start calling the pattern "my dad's anxiety" or "my grandmother's flinch," and you mean that literally, because that's where it came from. Naming it that way isn't blaming. It's handing it back. You can't carry what you can't see, and you can't put something down you haven't named. This is the whole argument of The Generational Algorithm: that what looks like your personality is often somebody else's survival, still running in your body.

They grieve. This is the part nobody puts on a book cover, because it's hard to sell. You can't step out of a family pattern without grieving what the pattern cost, in your life and in theirs. The anger people feel when they first start this work is real, and underneath it, almost always, there's grief. The grief is where the loop actually starts to loosen. People who skip past the grief tend to just build a nicer-looking version of the same thing.

They make one small choice, once. Stepping out of an inherited pattern isn't a single decision. It's a hundred small ones, repeated over years. A text you didn't send. A sentence you said in a different tone. A moment where you didn't do the thing your dad would have done. Almost invisible, on a given day. But small choices, repeated, are how inheritances got written in the first place, and they're how a new one gets written.

One thing worth saying out loud

Being the first person in your family to see the pattern is lonely work. The people who raised you might not want you to see it. The people around you might not understand why you're suddenly a little different. At some point you will probably feel like you're the problem in your own family, even though you are the one doing the work the family has needed for three generations.

That loneliness isn't a sign you're doing it wrong. It's usually a sign you're doing it at all.

The pattern wasn't written by you. It was handed to you. You don't owe it your loyalty, and you don't have to burn it down either. You get to read it. You get to name what it's costing. And then, slowly, in pieces small enough that you can actually live with them, you get to write something different.

That's the whole job. It just takes the rest of your life.

Francisco's book-length version of this argument is The Generational Algorithm.
Keep Reading
Essay
Mexican American men and the emotional inheritance nobody names
10 min read
Vol. 01 · Book
The Generational Algorithm
DECODE Method · 288 pp
Vol. 05 · Book
The Language That Raised Us
Cultural memoir · 240 pp