Highly analytical couples, such as scientists, may be more likely to produce children with autism, an expert has argued.
Professor Simon Baron-Cohen, of the University of Cambridge, said the phenomenon may help explain the recent rise in diagnoses.
He believes the genes which make some analytical may also impair their social and communication skills.
A weakness in these areas is the key characteristic of autism.
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http://news.bbc.co.uk/1/hi/health/4661402.stm