Causes of Autism

Autism is unconventional disturbance with unknown reasons in spite of the plenty of studies and researches in this field. Defining Autism doesn't depend on certain analysis or biological symptoms, but on some behavioral symptoms, and that's why it is called the known by its symptoms and unknown by its causes.

All  the current reason about Autism nowadays are mere hypothesis. There's been no scientific proved one. Reasons are divided into new and old ones. The old ones are: the fridge or cold mother and the rich family, but these  are no longer mentioned. The most prominent reasons and hypothesis, that explain Autism are:

The biological hypothesis, the hereditary hypothesis, the genetic hypothesis, the biochemical hypothesis, the metabolism hypothesis,   hypothesis of the viruses and   vaccination, the environmental hypothesis and  hypothesis of the brain and the thoughts. Recent scientific studies and the researches indicate  presence  of some scientific   signs which  indicates an efficient  presence of   genetic reasons     behind the disturbance for the Autism.