The average Icelandic father today at the time of conception is about 33 years old; much older than in the past. The authors explained that epidemiological studies carried out in Iceland have demonstrated that schizophrenia or autism risk in offspring is considerable greater the older the father is.


Rise In Autism Rates Partly Due To Older Fathers.

Since men are waiting to have children until much later in life, this may explain the rise in autism cases. Rob’s father was 31 when Rob was conceived; my father was the same age when he conceived my brother (AS and bipolar).