About 1 in 110 children have Autism Spexctrum Disorder, according to the CDC. But researchers are still unsure what exactly causes the disorder. But a new study may shed some needed light on this medical mystery. According to the study, published in the Nov. 9th issue of the Journal of the American Medical Association, autistic children have heavier brains and 67% more neurons.
CNN's Senior Medical Correspondent Elizabeth Cohen has the findings – and some advice for parents who suspect their children have autism.