American Morning

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November 9th, 2011
11:04 AM ET

New study shows children with autism have more neurons – could help unlock the mystery of autism

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.

Filed under: Autism • Health
August 15th, 2011
08:36 AM ET

Study: Siblings of autistic children more likely to have autism than previously thought

A new study released this morning by the journal Pediatrics finds that the siblings of autistic children are more likely to have autism than previously thought.

Previous studies estimated that the ASD recurrence risk in younger siblings was between 3% and 10%. But this study found that the overall risk was much higher, at 18.7% and even higher in families with more than one affected sibling – about 32.2%.

Today on American Morning, Alycia Halladay, director for environmental research for Autism Speaks, joins Alina Cho to explain the study and to weigh in on how this research may impact future genetic screening and family planning decisions.

Filed under: Autism • Health