What a great discussion. But could it have been what the parent are exposed to during the pregnancy that is causing the abnormal gene(the aetiology) or lack of oxygen at birth and the chemicals.
If its the abnormal gene, could it have been inherited from one of the parent or maybe any of the ancestor have the gene. I know gene are known to be inherited from one generation to the other.
Also concerning the chemical, are there no precise chemicals?( responsible for the defect). Just like the way serotonin causes infertility..if there is one feel free to share......
@funmiakinpelu
Hi @tundevet, thanks for paying close attention to the post. Yes, I did insinuate that a relative and close family member who is particularly high on one of the prevailing mental conditions could cause a child to be born with autism. And then, about the chemical imbalance, it's related to the genetic defect. Vaccines are the only external substances theorized to cause autism. And then, this in itself is an hypothesis. Thanks a lot for reading dear