Autism Spectrum Disorders and SSRIs
It is now estimated that autism spectrum disorders (ASD) affect about 1% to 2% of the population. Data derived from twin and sibling studies indicate that ASD is highly heritable. While genetic factors clearly play an important role, other studies point to an interplay between environmental and genetic factors in the etiology of this disorder. Over the years, various environmental exposures have been implicated, including vaccinations, mercury, and insecticides; however, it has been difficult to generate solid evidence linking specific environmental factors with increased risk for autism.