Christine Ladd-Acosta:
This is a great question.
There have been more recent research and years on environmental factors. And by environment, I really mean anything outside of our genes. And, to date, science is very strongly points out of several factors that we have learned or environments, including premature births.
Thus, individuals who are premature have a greater probability of autism. Pregnancies where mothers experience pregnancy conditions have also been associated with the risk of autism in their offspring. And there have been some studies on chemical toxic, things like the air we breathe and the quality of the air and trying to understand if it has an impact on autism.
Admittedly, there are other environmental exhibitions which, in our opinion, must be taken into account, and in particular in the context of the underlying genetic responsibility of a person for autism.