Maternal stress link to child autism, ADHD

In a Swedish population-based study drawing on a database of more than two million individuals, researchers used death of a mother’s first-degree relative as an objective measure of stress.

Bipolar disorder or schizophrenia risk was not increased in offspring whose mothers had experienced pregnancy-related stress.

However, third-trimester prenatal stress increased the risk of offspring ASD by 58% and ADHD by 31%, compared with mothers who had not experienced bereavement.

First postnatal year stress increased the