Autism is a neural developmental disorder and is characterized by impaired communication and social interaction and behavioral repetitiveness and limitation. Although many causes and reasons are proposed, it is still unknown the exact cause or reason behind autism developing in children. This is because autism is such a complex disorder. The reason scientists and researchers have come up with range from genetics to an expectant mother's prenatal environment, from a perinatal environment to a postnatal environment. There are many theories given for why autism occurs, here are a few.
Genetics: Genes are said to appear in autism. Some of the genes are believed to make a child more likely to develop the disorder, some of the genes affect the brain directly, its development as well as the way its cells communicate. Every potential problem found in genes could be held accountable for a small amount of autism cases. However, some of the genetic problems may be inherited and others seem to happen impulsively.
Environment: Health problems are said to attribute to genetic as well as environmental issues. Due to this statement, some believe this to be a factor in terms of autism too. Researchers studying autism are now exploring health problems like viral infections and environmental problems like air pollutants to examine if either can play a role in causing autism.
Vaccine: For a long while, vaccines were held as the biggest and most likely contributor of autism in people. Many believed that there was a link between certain vaccines required for children to take at young ages and autism. However, there has not been a study that can accurately and realistically show that there is any evidence of any sort of connection between autism and childhood vaccines. Childhood vaccinations should not be avoided because without them, children are put in extreme harm of catching diseases as serious as measles, pertussis, and/or mumps.
A Child's Prenatal Environment: Several prenatal risk factors can be linked to creating a risk of autism for a child. These risk factors include parental age, bleeding, diabetes, and using psychiatric drugs during pregnancy. Parental age can be a risk because of the risk of complications during pregnancy, autoimmunity in the mother, imprinted genes, etc. Infection through the mother is held as one of the main non-genetic causes of autism. If a mother is exposed to rubella during her pregnancy, her immune response is activated and increases the unborn child's risk of autism.
Explained above are just a few of the theories currently written about the causes of autism, but as previously stated, autism has no known cause. There is only knowledge of potential causes and patterns of occurrences that researchers have studied that point in the direction of these theories. There is still not a lot known about autism. The disorder itself is really complex. But it is important to be knowledgeable about worldly matters, especially common ones like this.
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