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Advanced paternal age is one of the more replicated risk factors for autism – but maybe not autism as it as seen as a disorder. Recent studies by Mount Sinai School of Medicine and Kings College of London show in both animal models and in epidemiological studies that advanced age in fathers is associated with the “active but odd” phenotype and PDD NOS. In people, older (but not “old”) age in fathers led to increased IQ and social aloofness that led to higher academic achievement. Is this autism? Or just a subtype of autism where the outcomes are adaptive rather than maladaptive? There are lots of questions about the nature of autism in these findings.