It Didn't Start With You: How Inherited Family Trauma Shapes Who We Are and How to End the Cycle by Mark Wolynn
So my therapist assigned this as homework; I put it on hold but only received it right as we went on a 3 week hiatus. I may update this review after our next session.
As it is, though, I am deeply unimpressed. Early in the book I sent to my wife, "the problem with pop psych books is that the line between “complete hooey MLM cult nonsense” and “legitimate peer reviewed approach” is astonishingly thin".
This book is option 1--mostly. The idea is that trauma can be inherited, that the things our ancestors lived through can be passed down to us. So far, so normal. But the mechanics of that, as currently known, are fairly blunt (if genetic) or limited to 1-2 generations (if behavioral*).
The research Wolynn sites backs this up, but most of the book is not about research. Most of the book is about how, uh, trauma can be passed along almost any family line; if your parents weren't traumatized but you have a mental health issue, clearly the problem is your uncles/grandparents/cousins/more distant ancestors! The mechanism by which an uncle can transfer trauma to a nibling is not explored.
The problem, of course, is that the narratives we tell ourselves about trauma are incredibly powerful. He's right that a huge factor in PTSD developing is the memories not being properly integrated, and god knows family trauma is a thing, but like...Everything after that point is just bull.
*Puts an asterisk and then forgets about it. I don't think there's enough rabid arguing discussion about how many of the effects of transgenerational trauma can be straight psychology/behavioral changes (ie, living through a famine will make you weird about food, and you will instill weirdness about food in your children). This does not require any fancy biology or morphic resonance, it's just...Learning theory.