Autistic mothers report having more anxiety and depression than neurotypical mothers do.

Pregnant women’s use of acetaminophen may increase the odds of autism and attention deficit hyperactivity disorder in their children.

Children born with high blood levels of vitamin D have 25 percent decreased odds of autism compared with those born with low levels.

Children who are born with mild heart problems are more likely to be autistic than their typical peers are.

Delivery by cesarean section leads to subtle brain and behavioral alterations in mice, particularly those delivered prematurely.

Exposure to infection in utero may speed up the expression of many genes linked to autism — and hasten changes in brain anatomy.

Marmosets exposed to a mock infection in the womb have altered vocal development and diminished social interest; exposed macaques show changes in brain structure and function.

A 3D model of a human embryo reveals the biological processes that unfold in early development.