The Biological Inheritance of Childhood Trauma: DNA, Disease, and Generations
About this Capsule
Childhood trauma does not just leave psychological scars; it leaves chemical marks on DNA that can pass to children and grandchildren, raising their risk of chronic disease. That runs against the mainstream view of trauma as a purely psychological injury confined to one generation. If the biology holds, it changes practice: screen earlier, study families across generations, and treat the body along with the mind.
This capsule argues that childhood trauma leaves lasting marks on DNA through epigenetic changes, which can be passed down to children and grandchildren, influencing their risk for chronic diseases. Unlike views that see trauma effects as purely psychological or isolated to one generation, this perspective highlights biological transmission via DNA methylation and stress physiology. Recognizing this shifts how clinicians and researchers approach trauma, emphasizing early screening, multi-generational biological sampling, and interventions that address both psychological and physiological impacts.
The Biological Inheritance of Childhood Trauma: DNA, Disease, and Generations
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