Children born to dads over 40 more at risk.
According to new study of 1,000 children. MORE
Risk increases in older parents.
Why the shocking new statistics still might not reflect its true prevalence rate.... MORE
Up 78 percent in the last decade. MORE
An autism expert has argued that a new definition of autism would exclude many now diagnosed. MORE
Diagnosis more likely if brother or sister is affected. MORE
Plays a larger role than genetics. MORE