Firstborn children of older parents are more likely to have autism, according to a new study. The study funded by the Centers for Disease Control and Prevention looked at the births of 240,000 children. It found that mothers over age 35 and fathers over age 40 had a higher risk of having a firstborn child with autism as opposed to parents ages 25 to 29. The findings could help explain why there’s been such an uptick in autism diagnoses in recent years, reports The Daily Telegraph. To read more click here.