Researchers at the Seaver Autism Center for Research and Treatment at Mount Sinai Hospital in New York City found that paternal age at the time of conception can influence the social development of their children.
By analyzing the social behaviors of over 15,000 twins between early childhood and adolescence (ages 4-16), researchers found that children who were born to fathers under 25 and older than 51 showed more pro-social behaviors in early development, however, once children reached adolescence they were behind in social skills to their peers who were born to fathers between 25 and 50.
The study, published in the Journal of the American Academy of Child and Adolescent Psychiatry, also showed that the development of social skills was influenced by genetics more than environmental factors.
According to one of the researchers, there is an increased importance on genetic factors observed in the offspring of older fathers, suggesting there may be different mechanisms behind the effects of the older and younger fathers.
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