It’s understood in epidemiological research that women who experience trauma during puberty are at significantly higher risk for affective disorders such as depression and anxiety when they become pregnant. And so Tracy Bale, a professor in the departments of psychology and psychiatry at the University of Maryland in Baltimore, has done several studies using mice to try to model and understand this effect. In her latest paper in the journal Neuropsychopharmacology, she and her colleagues set out to study just what was happening to make the mouse brain so vulnerable to stress and trauma during puberty, and how this was activated during the hormonal onslaught of pregnancy.

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