Although the definition of autism is basically clear, the reasons are not. Autism is a developmental disorder that begins at birth or early childhood. Treatment of autism is important, so that the child develops the ability to interact normally with other people. Autism is about 20 times more common than experts initially thought it was. However, there is no clear consensus on them, the real reason (s) of autism. That said, there are a variety of (questionable) theories about what causes the disorder. Here are some of them:1. Genes
It is undeniable that genetics is an important factor for autism. But the composition of genes that lead to autism is quite complicated, and medical researchers are not 100% sure the genes that cause disease. Recently, scientists discovered the first important link between autism and the DNA of a person. The study included about 1,000 people with autism, and 1,200 non-autistic. He revealed that autistic children usually have about 20% more copy number variations (CNV) in their DNA make-up children without autism do. The discovery could lead to improved diagnosis and treatment of autism. For example, understanding how the nervous system in children with autism develop differently than the usual hope is that new and better treatments will be available to them. Although this new development in promising, the researchers admit they need several years to fully understand the relationship between CNVs and autism.
2. Joint Attention
This involves a person's actions or pointing with his eyes observing an object or event. It is important to note that the various joint attention behaviors are observed in every child with autism. One theory is that autistic children use joint attention as often as children without autism, although by different methods.
3. Mental retardation
Another controversy that causes mental retardation associated with autism. It 'widely believed that most autistic people are also meeting the clinical definition of mental retardation. However, that perception is a bit 'questionable. Studies show that some people with autism are mentally retarded may vary from about a quarter or three quarters. The reason for this variation is due to a major challenge in the evaluation of autistic intelligence. Some experts estimate the standard intelligence tests are heavily based on language, and that such tests to assess their ability to abstract reasoning, are better to measure the intelligence of autistic people.
4. Vaccines
There are some solid evidence that vaccines clinics could be one of the main factors that caused autism rates to increase by 1000% in the U.S. since 1990. For example, a study in the U.S. that children who received a special type of vaccine (with a preservative called thimerosal, which is extremely high in mercury) was about 200% more likely to develop autism than children who did not receive the vaccine. Thimerosal has also been associated with learning difficulties that resulted in autism. Many researchers also point out that the number of vaccines for children has risen sharply in recent decades. They note that certain substances in them might be to have a negative impact on the immune system of a child, resulting in more problems such as autism.
