Autism Spectrum Disorders appear to be caused by a combination of genetic and environmental contributors. A very recent study found that “Where and when grandparents and parents of children were born could contribute to an increased risk of ASD in their offspring.”An article in Genome Medicine reported, “There is strong evidence that genetic factors make substantial contributions to the etiology of autism, schizophrenia, and bipolar disorders, with heritability estimates being at least 80% for each.” Fairly recent research has identified that some brain conditions—Autism Spectrum, for example—may link to paternal line inheritances from several generations back. You might find it interesting to read about that.
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