Environment

High blood pressure, preterm birth and other pregnancy complications may increase the risk of autism.

Children born to women who received a routine vaccine while pregnant are not at an increased risk of autism.

Children born to women who had diabetes or high blood pressure while pregnant may be at an increased risk of autism.

Brain networks in newborns may reflect the degree of inflammation their mothers experienced during pregnancy.

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

Epilepsy in infancy and the use of prescription medications during pregnancy are the strongest of 29 known risk factors for autism in a child.

Folic acid, a B vitamin, may lower autism risk and ease features of the condition.

A new catalog may help clinicians evaluate the daily challenges people with autism face.

Women who take acetaminophen — commonly marketed as Tylenol in the United States — early in pregnancy may increase their daughters’ risk of language delay.

Children of women who are hospitalized during pregnancy may develop poor physical, social, cognitive or emotional skills.