There are no definite causes for autism. Some blame it on genes others feel few environmental factors can trigger autism. Over the past decade many studies and researches have been done on this issue and lot of information on autism are available in books, journals, newspapers, TV and in Internet, but no one could figure out the exact cause that can be attributed to autism.

Therefore, in this article you would find a number of theories that have been considered the causes of autism. Perhaps a combination of all these may give us an appropriate answer.

The possible causes of autism can be summed in the following points:

Vaccines: Two different studies link autism with vaccines. The first one suggests that the vaccine MMR (Mump-Measles-Rubella) given in infancy leads to some intestinal disorders giving rise autism. The second one implies that a particular type of preservative known as thimerosal utilized in preservation of vaccines may result in autism.

Genetic: There is definitely some link with autism and genes. There are many studies that clearly state that those children whose parents are autistic are more likely to develop it.

Abnormal Brain Function: Studies and researches on autism have shown some interesting facts about the brain size of an autistic person. An autistic person possesses a larger brain as compared to a healthy person. The way information is processed in an autistic person’s brain is quite different from a healthy one.

Immune Deficiency: Autism is associated to immune deficiency. Enhancing the immune system of an autistic person has helped them greatly.

Food Allergy: Allergies to certain kinds of food products may trigger autism. There are facts which supports that a wheat product known as gluten and a dairy product called casein could be offenders.

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