The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
But more likely and certainly what these data about these polymorphisms point to is that what gets passed on is a propensity for the threat reflex to get activated and attached to a wider variety or to less intense types of inputs and experiences.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
It's a gene or it's a modification in a set of genes that gives a heightened level of responsivity to fearful type events. Or even a high level of responsivity such that things that wouldn't be fear inducing or trauma inducing to certain individuals can trigger fear and trauma in these children that inherit this particular gene.
It's not that the abuse itself gets passed from one generation to the next it's a predisposition.
But in more recent studies have really proven that we as humans have the capacity to inherit a predisposition to trauma or fear.