A new study conducted on the autism risks proves that men too have biological clocks as it was determined older fathers risk their children being born with autism.
The sample group was large and it included 132,271 children from Israel who were assessed again at the age of 17. The data included the age of their parents when the children were born, as well as the years when they were born and the families’ socioeconomic status.

The rate of autism in children whose fathers were between 15 and 29 when they were born was six in every 10,000 children. The rates increased to nine in every 10,000 when fathers were aged 30 to 39 which is 1.6 times higher. But in children whose fathers were between ages 40 to 49, the rate rose to 32 in 10,000 which represents 5.75 times higher rates.
The mother’s age had no influence on autism risks.

Overall, autism spectrum disorders have increased in number in the last two decades, with 50 affected in every 10,000 children compared to 5 in 10,000 twenty years ago.
The researchers think that there could be a genetic fault that becomes more common with increased age. They suggest that there could be “spontaneous mutations in sperm-producing cells or alterations in genetic imprinting”.

More research is needed to confirm that the results from the Israeli children could be generalized to other populations and only then could be advanced paternal age taken as a risk factor for autism spectrum disorder.