Study Finds 2-Fold Schizophrenia Risk in Children of Holocaust Survivor Mothers Over Age 5
Updated
Updated · The Jerusalem Post · Jul 18
Study Finds 2-Fold Schizophrenia Risk in Children of Holocaust Survivor Mothers Over Age 5
2 articles · Updated · The Jerusalem Post · Jul 18
Summary
A Hebrew University-led study found children born decades later to Holocaust survivor mothers who were older than 5 when Nazi persecution began faced more than double the risk of schizophrenia.
The analysis linked Jerusalem Perinatal Study births from 1964-1976 to Israel’s psychiatric registry through 2004, covering 14,759 children of tracked mothers and 18,085 of tracked fathers.
That elevated risk remained statistically significant after adjusting for sociodemographic factors, birth weight and maternal psychiatric hospitalization, while no increase appeared when exposed parents had been 5 or younger.
Fathers older than 5 initially showed a higher offspring risk too, but the association lost statistical significance after adjustment, leaving the maternal link as the strongest finding.
Researchers said the observational results cannot prove causation, but they point to possible intergenerational trauma pathways relevant to other war-affected populations.
Why does a mother's trauma after age five, but not a father's, appear to double her child's schizophrenia risk?
Are today's global conflicts creating a hidden mental health crisis for generations that have not yet been born?
Intergenerational Trauma and Schizophrenia: Israeli Study Links Maternal Holocaust Persecution to Increased Risk in Children
Overview
A recent Israeli study published in 2026 reveals that children born to mothers who experienced severe Holocaust persecution after age five face a significantly higher risk of developing schizophrenia. The research highlights how early life adversity in parents, especially when experienced after a critical developmental age, can strongly influence the mental health of their offspring. By carefully defining and grouping exposed parents based on their age during trauma, the study provides important insights into the intergenerational impact of trauma, showing that the timing of a parent's traumatic experience plays a crucial role in shaping their children's mental health outcomes.