Autism is generally a complex developmental disability that causes physical and mental problems within the victim. Studies by scientists and researchers have showed that this condition is the result of a neurological disorder which quite adversely affects the normal brain functioning of an individual and also very deeply and intensely affects the victim’s capability of effectively communicating with the people around and this condition also causes retardation in the social interacting skills of the sufferer. People going through the complex phase of this complex disorder phase issues like non-verbal communication and the sufferers mainly stay away from social interactions or any elements of interaction like play and games.
There are many reasons that are found to be responsible to be the cause of troubles like autism in children. Autism generally shows out from the time a child is about three years old and various symptoms can be caught at an early stage by the family members who can possibly understand it better by the victim’s abnormal behavioural pattern as compared with the normal children of that age. The main reason for this abnormal condition is found to be the hereditary genetic mutations which show themselves out in the new born.
The researchers and scientists have found out that pollution in the atmosphere also increases the risk of autism in the unborn. Exposures to traffic related air problems by the expectant mother and frequent exposures to particulate matter suspended in the air and poisonous gases like nitrogen dioxide are also associated with an increased risk of autism. Pollutants not only cause abnormalities like autism but also cause complete genetic mutation in cases of prolonged exposure. Genetic mutation refers to a condition where a pair of genes in the body becomes completely numb or in other words, they cannot function normally or carry the proper hereditary characteristics to the offspring and hence can cause major abnormalities in the new born – in most cases, defects like autism.
There indeed is a clearly proved genetic part to autism. It is carried from generations through genes. Identical twins who have mostly the same receptor genes are more likely to face the situation in which both of them have autism whereas in fraternal twins, this can be avoided or can be said that the condition is not observed where both of them have autism because there must be only one recessive gene which either of the twin did not inherit.
Extra pair of genes, missing genes or in some cases, missing genes can also lead to autism. Smaller changes in the individual’s DNA system can also lead to such fragile conditions.
Around 10% of the autistic kids have big DNA changes and most of these are due to missing genes. 1% or very few children suffer due to autism because of the DNA changes between the parents and the child but these changes are not very common which in turn means that having two autistic children because of changes like this is quite rare.