Scientists have identified the link between autism and the effects of pollutants in the air on the body during pregnancy. A study by the Harvard School of Public Health found that a high level of air pollution caused the number of autistic children to double.
According to scientists, the development of child autism contribute to tiny particles that fall from the lungs into the blood. The study was published in the journal Environmental Health Perspectives. He was briefly written about the site of the British BBC News Service.
Experts advise pregnant women to minimize the impact on the body of dirty air. Indeed, dirty urban air has a negative effect on a person. The World Health Organization estimates that the number of deaths related to this problem reaches 3.7 million per year.
A total of 1767 children were studied: 245 of them with autism and 1522 without him.
After analyzing the data on the place of residence of future mothers, the scientists saw a frequent connection between autism and heavily polluted air. Experts explain the development of the disease by the entry into the bloodstream of fine solid particles (invisible mineral dust and other chemicals) that can cause damage to healthy cells and tissues throughout the body.
However, the study did not allow us to say with certainty that dirty air is the cause of autism, as there may be other factors that were not taken into account by the researchers.
Heredity plays an important role in the development of the disease, but obviously this is not the only important factor. Scientists are finding more evidence pointing to the role of dirty air in autism.
Identifying the causes of autism may help develop preventive measures against the disease.
Earlier this year, new evidence was found that autism begins in the womb with defects of the cerebral cortex.
The article is based on materials .
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