Autism, according to every single proper scientific research conducted, is genetic-related. Exactly what causes it, genetic-wise, isn’t known. However, it is inherited. It isn’t gained through environmental effects. Taking Tylenol before you give birth—it’s not something that you can gain after being born. You are born with it, from the day you are conceived to the day you were born. It’s basically there all along. You don’t gain it.