An Australian study has discovered that children with older fathers tend to score lower on IQ tests during infant and adolescent years.
According to Reuters, during the study, researchers analyzed data from intelligence tests taken by more than 33,000 U.S. children who were born between 1959 and 1965. "The children were tested at 8 months, 4 years and 7 years and were assessed for their sensory discrimination, hand-eye coordination, reading, spelling and arithmetic ability."
The results if the study revealed that those children with older fathers scored lower on the test, in contrast to those with older mother who tended to score higher on the given IQ tests.
Research concludes that those with older mothers score higher because they were more nurtured at home. Those with older fathers were more likely to not be nurtured as much.
Also, those children with older aged fathers are more subject to "mutation". According to researchers, the older a man gets, the more "incidents of mutation the sperm" is likely to have, created an effect on their offsprings.
Older parents is more of a trend now in developed countries, however, the side effects to late child birth is often never considered.
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