Autism is a neurodevelopmental disorder and its first symptoms appear in early childhood. Importantly, they last a lifetime. We know of two types of autism (schizophrenic and infantile). The cause of the development of this disease is not yet known, although we know that both biological and psychological factors have a huge impact on its development. Scientific studies, show that people with autism have many more synapses in their brain than healthy people, as they do not undergo a natural pruning process.