What We Inherit Without Being Told: Understanding Generational Trauma Beyond Blame

Abstract

Generational trauma involves the multi-generational transfer of systemic psychological, interpersonal, and physiological stress, occurring independently of any direct exposure to traumatic triggers within the descendant generations. This narrative review synthesises evidence from attachment theory, affective neuroscience, epigenetics, social learning theory, and historical-trauma scholarship to examine how unresolved adversity is carried forward through behaviour, belief, relationship, and the body. Organised around a biopsychosocial framework, the review traces three interacting pathways of transmission: biological adaptation in the stress-response system, relational and cognitive learning within the family, and systemic conditioning within cultural and historical contexts. An illustrative single-case study of a 29-year-old man in urban India is used to demonstrate how these pathways converge in a lived presentation and how therapeutic intervention can interrupt the cycle. The review gives particular attention to the contested status of epigenetic transmission in humans, to evidence of resilience and non-transmission, and to the cultural specificity of trauma transmission in collectivistic family systems. It concludes that awareness and relational repair are protective rather than passive, and also the fact that intergenerational transmission of trauma, while powerful, is not inevitable.